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Pressure of a component gas in a mixture
In a mixture of gases, each constituent gas has a partial pressure which is the notional pressure of that constituent gas as if it alone occupied the
Partial_pressure
Chemical compound
carbon dioxide content of the blood is often given as the partial pressure, which is the pressure which carbon dioxide would have had if it alone occupied
Carbon_dioxide
Chemical element with atomic number 8 (O)
attraction force. Since O 2's partial pressure is the fraction of O 2 times the total pressure, elevated partial pressures can occur either from high O
Oxygen
Force distributed over an area
magnitude (pressure) – Comparison of a wide range of pressures Partial pressure – Pressure of a component gas in a mixture Pressure measurement Pressure sensor
Pressure
Empirical law of partial pressures
law of partial pressures) states that in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the partial pressures of the
Dalton's_law
Law of thermodynamics for vapour pressure of a mixture
in 1887, it states that the partial pressure of each component of an ideal mixture of liquids is equal to the vapor pressure of the pure component (liquid
Raoult's_law
Protective suit worn in low-pressure environments
at positive pressure. Such suits may be either full-pressure (e.g., a space suit) or partial-pressure (as used by aircrew). Partial-pressure suits work
Pressure_suit
Partial pressure of blood gases
Blood gas tension refers to the partial pressure of gases in blood. There are several significant purposes for measuring gas tension. The most common gas
Blood_gas_tension
Biological system in animals and plants for gas exchange
distributed throughout the body therefore has a partial pressure of oxygen of 13–14 kPa (100 mmHg), and a partial pressure of carbon dioxide of 5.3 kPa (40 mmHg)
Respiratory_system
Refrigerator that uses a heat source
partial pressure environment, thus extracting heat from its surroundings (e.g. the refrigerator's compartment). Because of the low partial pressure,
Absorption_refrigerator
Component of respiratory physiology
determine the values for alveolar pO2 and pCO2 are: The pressure of outside air The partial pressures of inspired oxygen and carbon dioxide The rates of total
Pulmonary_gas_pressures
Effective partial pressure
effective partial pressure which replaces the ideal partial pressure in an accurate computation of chemical equilibrium. It is equal to the pressure of an
Fugacity
Partial pressure of carbon dioxide, often used in reference to blood
pCO2, pCO2, or P CO 2 {\displaystyle P_{{\ce {CO2}}}} is the partial pressure of carbon dioxide (CO2), often used in reference to blood but also used in
PCO2
Equipment which allows the user to breathe at hypoxic altitudes
allows a person to breathe more effectively at an altitude where the partial pressure of oxygen in the ambient atmospheric air is insufficient for the task
High-altitude breathing apparatus
High-altitude_breathing_apparatus
Disorder caused by dissolved gases forming bubbles in tissues
proportional to the difference between the partial pressure of inert gas in the diver's body and its partial pressure in the breathing gas; whereas the likelihood
Decompression_sickness
Physical laws describing gases
pressure of the gas mixture Pi is the partial pressure or pressure of the component gas at the given volume and temperature. Amagat's law of partial volumes
Gas_laws
Mixing and filling cylinders with breathing gases for use when scuba diving
narcosis and decompression sickness. Methods used include batch mixing by partial pressure or by mass fraction, and continuous blending processes. Completed blends
Gas_blending_for_scuba_diving
Techniques requiring specific equipment and procedures
generally to maintain a constant partial pressure, regardless of depth. This is also called constant oxygen partial pressure diving and is a feature of electronically
Modes_of_underwater_diving
Chemical compound
in the fire, then the partial pressure of CO2 in the kiln can be as high as 20 kPa. The table shows that this partial pressure is not achieved until the
Calcium_carbonate
Diving mode and decompression technique
oxygen partial pressure, but often use a higher partial pressure of oxygen, between 0.6 and 0.9 bar,(0.6 to 0.8 bar) which lessens the effect of pressure variation
Saturation_diving
Physical quantity
Hydrostatic pressure is the static pressure exerted at a point of interest by the weight of a fluid column above the point. Due to the fundamental nature
Hydrostatic_pressure
Medical condition of lack of oxygen in the tissues
apnea, etc.). Low-inspired oxygen partial pressure, which may be caused by breathing normal air at low ambient pressures due to altitude, by breathing hypoxic
Hypoxia_(medicine)
Loss of consciousness at a shallow depth during a dive
oxygen partial pressure caused by a reduction in ambient pressure after much of the available arterial oxygen has been used up at the higher partial pressures
Shallow-water_blackout
Toxic effects of breathing oxygen at high partial pressures
harmful effects of breathing molecular oxygen (O 2) at increased partial pressures. Severe cases can result in cell damage and death, with effects most
Oxygen_toxicity
Instrument to calculate decompression status in real time
the diver including ambient temperature, partial pressure of oxygen in the breathing gas at ambient pressure, accumulated oxygen toxicity exposure data
Dive_computer
Soviet high-altitude partial pressure suit
высотный компенсирующий костюм), is a series of Soviet high-altitude partial pressure suit, which loosely translates 'altitude compensation suit'. It has
VKK_flight_suit
Visual tool used to understand how human blood carries and releases oxygen
oxyhemoglobin dissociation curve relates oxygen saturation (SO2) and partial pressure of oxygen in the blood (PO2), and is determined by what is called "hemoglobin
Oxygen–hemoglobin dissociation curve
Oxygen–hemoglobin_dissociation_curve
Method to calculate rate of heat transfer in heat exchangers
partial pressure of air (not including the partial pressure of water vapor in an air mixture) and can be approximated by knowing the partial pressure
NTU_method
Chemical compound
temperature and atmospheric pressure, solid carbonic acid is amorphous and lacks Bragg peaks in X-ray diffraction. But at high pressure, carbonic acid crystallizes
Carbonic_acid
Medical treatment at raised ambient pressure
barometric pressures of gases such as air or oxygen. The immediate effects include reducing the size of gas emboli and raising the partial pressures of the
Hyperbaric_medicine
State of steady internal conditions maintained by living things
of the partial pressure of oxygen in the blood, the amount of oxygen that can be carried, depends on the hemoglobin content. The partial pressure of oxygen
Homeostasis
Abnormally low level of oxygen in the blood
metabolic demands. Hypoxemia is usually defined in terms of reduced partial pressure of oxygen (mm Hg) in arterial blood, but also in terms of reduced content
Hypoxemia
Inhaled air volume not involved in gas exchange
{CO2}}}} is the partial pressure of carbon dioxide in the arterial blood, and P e CO 2 {\displaystyle P_{e\,{\ce {CO2}}}} is the partial pressure of carbon
Dead_space_(physiology)
Process by which gases diffuse through a biological membrane
cycle (Fig. 5). The alveolar partial pressure of oxygen remains very close to 13–14 kPa (100 mmHg), and the partial pressure of carbon dioxide varies minimally
Gas_exchange
Pressure exerted by a vapor in thermodynamic equilibrium
Vapor pressure or equilibrium vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid)
Vapor_pressure
Environmental effects on physiology and mental health
of high altitude on humans are mostly the consequences of reduced partial pressure of oxygen in the atmosphere. The medical problems that are direct consequence
Effects of high altitude on humans
Effects_of_high_altitude_on_humans
Model describing the adsorption of a mono-layer of gas molecules on an ideal flat surface
This model even explains the effect of pressure; i.e., at these conditions the adsorbate's partial pressure p A {\displaystyle p_{A}} is related to its
Langmuir_adsorption_model
Formula for the partial pressure of alveolar oxygen
The alveolar gas equation is the method for calculating partial pressure of alveolar oxygen (pAO2). The equation is used in assessing if the lungs are
Alveolar_gas_equation
Class of organic compounds
calculated using the ratio of two CFC partial pressures or the ratio of the SF6 partial pressure to a CFC partial pressure. According to their material safety
Chlorofluorocarbon
Organic compound
carbamate decomposition is promoted by reducing the overall pressure, which reduces the partial pressure of both ammonia and carbon dioxide, allowing these gasses
Urea
Method of separating mixtures
medico-industrial applications. Crude oil stabilisation, a partial distillation to reduce the vapor pressure of crude oil, which thus is safe to store and to transport
Distillation
Buffer system that maintains pH balance in humans
Henderson–Hasselbalch equation is usually quoted in terms of pCO2, the partial pressure of carbon dioxide, rather than H2CO3 concentration. However, these
Bicarbonate_buffer_system
Transition from solid to gas without melting
intermediate liquid state. The pressure referred to is the partial pressure of the substance, not the total (e.g. atmospheric) pressure of the entire system. Thus
Sublimation (phase transition)
Sublimation_(phase_transition)
Gas law regarding proportionality of dissolved gas
dissolved gas in a liquid is directly proportional at equilibrium to its partial pressure above the liquid. The proportionality factor is called Henry's law
Henry's_law
Zone in which oxygen saturation in seawater in the ocean is at its lowest
(critical partial pressure)- the oxygen level below which an organism cannot support a normal respiration rate Pleth (lethal partial pressure)- the oxygen
Oxygen_minimum_zone
Equipment allowing or assisting the user to breathe in a hostile environment
g., a space suit) or partial-pressure (as used by aircrew). Partial-pressure suits work by providing mechanical counter-pressure to assist breathing at
Breathing_apparatus
Medical condition due to rapid exposure to low oxygen at high altitude
symptoms.[citation needed] Those individuals with the lowest initial partial pressure of end-tidal pCO2 (the lowest concentration of carbon dioxide at the
Altitude_sickness
Body fluid in the circulatory system
below 6.9 or above 7.8 is usually lethal. Blood pH, partial pressure of oxygen (pO2), partial pressure of carbon dioxide (pCO2), and bicarbonate (HCO3−)
Blood
Narcotic effects of respiratory nitrogen
depth. It is caused by the anesthetic effect of certain gases at high partial pressure. The Greek word νάρκωσις (narkōsis), "the act of making numb", is derived
Nitrogen_narcosis
Portable apparatus to recycle breathing gas
contaminating the air that the staff breathe, and at high altitude, where the partial pressure of oxygen is low, for high altitude mountaineering. In aerospace there
Rebreather
Principle to predict effects of a change in conditions on a chemical equilibrium
decrease in partial pressure of gas molecules by shifting to the side that exerts greater pressure. Similarly, if we were to increase pressure by decreasing
Le_Chatelier's_principle
Gaseous phase of water
equilibrium vapor pressure; 100% relative humidity occurs when the partial pressure of water vapor is equal to the equilibrium vapor pressure. This condition
Water_vapor
contributes to total atmospheric pressure. At sea level, atmospheric pressure is approximately 760 mm Hg, and the partial pressure of oxygen is 160 mm Hg, yielding
Physics_of_respiration
Mathematical descriptions of molecular diffusion
{D}{RT}}{\frac {\partial f_{i}}{\partial x}},} where f i {\displaystyle f_{i}} is the fugacity in Pa. f i {\displaystyle f_{i}} is a partial pressure of component
Fick's_laws_of_diffusion
Compound that induces a loss of consciousness
the body proceeds until the drug's partial pressure within the various tissues is equivalent to the partial pressure of the drug within the lungs. Healthcare
General_anaesthetic
Process to maintain internal air pressure in aircraft or spacecraft
level needs about 0.20 bar (20 kPa; 2.9 psi) partial oxygen pressure to function normally and that pressure can be maintained up to about 40,000 ft (12
Cabin_pressurization
Concentration of a vapor in contact with its liquid
is often expressed in terms of vapor pressure, which will be a partial pressure (a part of the total gas pressure) if any other gas(es) are present with
Vapor–liquid_equilibrium
Concentration of water vapour in the air
and pressure. More formally, relative humidity is defined as the ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water
Humidity
Respiratory failure due to widespread inflammation in the lungs
(ratio of partial pressure arterial oxygen and fraction of inspired oxygen) of less than 300 mm Hg despite a positive end-expiratory pressure (PEEP) of
Acute respiratory distress syndrome
Acute_respiratory_distress_syndrome
Mass per unit volume of the Earth's atmosphere
a mixture of ideal gases. In this case, the partial pressure of water vapor is known as the vapor pressure. Using this method, error in the density calculation
Density_of_air
Interface between oxygen delivery system and human user
(ambient pressure, and therefore the partial pressure of ambient oxygen, decreases), the oxygen flow increases such that the partial pressure of oxygen
Oxygen_mask
Metalloprotein that binds with oxygen
which can better bind oxygen. The partial pressure of the system also affects O2 affinity where, at high partial pressures of oxygen (such as those present
Hemoglobin
Concept in physiology
\log(P_{50})} vs pH {\textstyle {\text{pH}}} curve where, P50 refers to the partial pressure of oxygen when 50% of haemoglobin's binding sites are occupied. The
Bohr_effect
Breathing gas, mixture of nitrogen and oxygen
proportions than atmospheric air is in scuba diving, where the reduced partial pressure of nitrogen is advantageous in reducing nitrogen uptake in the body's
Nitrox
Type of fuel cell
material is a Ni doped YSZ. However, high steam partial pressures and low hydrogen partial pressures at the Ni-YSZ interface causes oxidation of the nickel
Solid_oxide_electrolyzer_cell
Electrode measuring the oxygen partial pressure in a solution
The Clark electrode is an electrode that measures ambient oxygen partial pressure in a liquid using a catalytic platinum surface according to the net reaction:
Clark_electrode
Substances in the gas phase at a temperature lower than its critical point
any pressure. In the atmosphere at ordinary temperatures gaseous water (known as water vapor) will condense into a liquid if its partial pressure is increased
Vapor
Mathematical models of heat pumps and refrigeration
absorption cycle is similar to the compression cycle, but depends on the partial pressure of the refrigerant vapor. In the absorption system, the compressor
Heat pump and refrigeration cycle
Heat_pump_and_refrigeration_cycle
Process of moving air in and out of the lungs
controlled unconsciously by homeostatic mechanisms that maintain arterial partial pressures of carbon dioxide and oxygen. Keeping arterial CO₂ stable helps maintain
Breathing
Chemical property
coefficient. If X is a gas, instead of [X] the numerical value of the partial pressure P X {\displaystyle P_{X}} in bar is used. If it can be assumed that
Equilibrium_constant
Exposure of tissues to abnormally high concentrations of oxygen
oxygen partial pressure ― that is, alveolar oxygen partial pressure greater than that due to breathing air at normal (sea level) atmospheric pressure. This
Hyperoxia
Extensive parameter used to describe a thermodynamic system's state
g. air, the partial volume allows focusing on one particular gas component, e.g. oxygen. It can be approximated both from partial pressure and molar fraction:
Volume_(thermodynamics)
Measure of the effective concentration of a species in a mixture
on temperature, pressure and composition of the mixture, among other things. For gases, the activity is the effective partial pressure, and is usually
Thermodynamic_activity
Body fluid outside the cells of a multicellular organism
directly dependent on the partial pressure of carbon dioxide in the ECF, hyperventilation, which lowers the partial pressure of carbon dioxide in the ECF
Extracellular_fluid
Swimming underwater, breathing gas carried by the diver
resurgence of interest in rebreather diving. By accurately measuring the partial pressure of oxygen, it became possible to maintain and accurately monitor a
Scuba_diving
Relation of the partial pressure of water in air to temperature
{\displaystyle \gamma } relates the partial pressure of water in air to the air temperature. This lets one interpolate actual vapor pressure from paired dry and wet
Psychrometric_constant
Monitoring of the concentration of carbon dioxide in respiratory gases
Capnography is the monitoring of the concentration or partial pressure of carbon dioxide (CO 2) in the respiratory gases. Its main development has been
Capnography
Garment worn to protect a human in space
pure oxygen must have a pressure of about 32.4 kPa (240 Torr; 4.7 psi), equal to the 20.7 kPa (160 Torr; 3.0 psi) partial pressure of oxygen in the Earth's
Space_suit
Blood test that measures amounts of dissolved gas
blood gas tension values of the arterial partial pressure of oxygen (PaO2), and the arterial partial pressure of carbon dioxide (PaCO2), and the blood's
Arterial_blood_gas_test
Closed or semi-closed circuit scuba
Electronically controlled diving rebreathers may automatically maintain a partial pressure of oxygen between programmable upper and lower limits, or set points
Diving_rebreather
Influences of the underwater environment on the physiology of human divers
which is proportional to their partial pressure, which for contaminants is increased in proportion to absolute ambient pressure. Work of breathing is increased
Human physiology of underwater diving
Human_physiology_of_underwater_diving
Equation describing the amount of physiological dead space in a person's lungs
measurement of the alveolar partial pressure PA. P e C O 2 {\displaystyle P_{e}\mathrm {CO} _{2}} is the partial pressure of carbon dioxide in the expelled
Bohr_equation
Safety concept in underwater diving
operating depth (MOD) of a breathing gas is the depth below which the partial pressure of oxygen (pO2) of the gas mix exceeds an acceptable limit. This limit
Maximum_operating_depth
Inadequate gas exchange by the respiratory system
altered state of consciousness due to ischemia in the brain. The typical partial pressure reference values are oxygen Pa O 2 more than 80 mmHg (11 kPa) and carbon
Respiratory_failure
Gas used for human respiration
component for any breathing gas, at a partial pressure of between roughly 0.16 and 1.60 bar at the ambient pressure, occasionally lower for high altitude
Breathing_gas
True vapor pressure (TVP) is a common measure of the volatility of petroleum distillate fuels. It is defined as the equilibrium partial pressure exerted
True_vapor_pressure
pressure, the SI unit of which is the pascal. Internal pressure is usually given the symbol π T {\displaystyle \pi _{T}} . It is defined as a partial
Internal_pressure
Medical imaging technique
significantly decreases the relaxation time, which offers insights into the partial pressure of oxygen (pO2) within regions of the lung. Additionally, the ventilation
Xenon_gas_MRI
Chemical equilibrium of a reversible reaction
dioxide will leave the liquid phase at an ever-decreasing rate, and the partial pressure of carbon dioxide in the gas phase will increase until equilibrium
Dynamic_equilibrium
Genus of bacteria
Gemella is a genus of Gram-positive bacteria that thrive best at high partial pressure of CO2. A Gemella species was first described as Neisseria hemolysans
Gemella
2019 British documentary film
to the cold water and having been breathing a gas mix with a high partial pressure of oxygen, Lemons survived for around 30 minutes while he was located
Last_Breath_(2019_film)
Elongate mineral formation found on a cave floor
bicarbonate solution in caverns. The partial pressure of carbon dioxide in the water must be greater than the partial pressure of carbon dioxide in the cave
Stalagmite
Process by which the human body regulates pH
breathing is resumed when the partial pressure of carbon dioxide has returned to 5.3 kPa. The converse happens if the partial pressure of carbon dioxide falls
Acid–base_homeostasis
Flow of oxygen from air to mitochondria
aerobic respiration to release energy. Oxygen flows from areas with high partial pressure of oxygen (PO2, also known as oxygen tension) to areas of lower PO2
Oxygen_cascade
Reactions of carbon dioxide, including process of dissolving carbon dioxide in a liquid
CO(NH2)2 + H2O Henry's law states that PCO2=KBxCO2 where PCO2 is the partial pressure of CO2 gas above the solution. KB is Henry's law constant. KB increases
Carbonation
Hydrogen atom that has gained or lost an electron
proportional to the partial pressure of CO2 in the atmosphere. To maintain equilibrium, a state of high atmospheric partial pressure of CO2 leads to an
Hydrogen_ion
Cell cluster within carotid arteries which monitors blood content
in the composition of arterial blood flowing through it, mainly the partial pressure of arterial oxygen, but also of carbon dioxide. It is also sensitive
Carotid_body
British chemist and physicist (1766–1844)
empirical law of partial pressures (later known as Dalton's Law), and studied the behaviour of gases through his work on vapor pressure and gas solubility
John_Dalton
Difference between the partial pressures of oxygen in arterial blood and body tissues
and decompression, the oxygen window is the difference between the partial pressure of oxygen (PO2) in arterial blood and the PO2 in body tissues. It is
Oxygen_window
Medical condition of oxygen deprivation
ambient pressure 37.6kPa absolute, 7.9kPa partial pressure of oxygen – consciousness lost[citation needed] While breathing pure oxygen at ambient pressure, from
Generalized_hypoxia
PARTIAL PRESSURE
PARTIAL PRESSURE
Male
Hungarian
Hungarian form of Greek Bartholomaios, BARTAL means "son of Talmai."
Boy/Male
Hindu
Lord of parti one of the name of Shri Satya Sai baba
Boy/Male
Sikh
One on whom there is gods grace, Gods mercy
Boy/Male
Teutonic
Martial ruler.
Boy/Male
Australian, Christian, French, Latin, Swiss
Warring; Like Mars; Roman God Mars
Male
German
Variant spelling of German Parzifal, PARSIFAL means "pierced valley."
Surname or Lastname
English
English : variant of Hartell.
Boy/Male
Hindu, Indian
Lord of Parti; One of the Name of Shri Satya Saibaba
Boy/Male
Latin
Warring.
Male
English
English form of Roman Latin Martialis, MARTIAL means "of/like Mars."
Girl/Female
Hindu, Indian
Queen
Male
German
German form of French Percevel, PARZIVAL means "pierced valley."
Male
Irish
Irish Gaelic legend name, thought by some to have been derived from Latin Bartholomaeus, PARTHALÃN means "son of Talmai." As the legend goes, this name belonged to an early invader of Ireland who was the first to arrive on those shores after the biblical flood.
Girl/Female
Latin American Shakespearean
An offering. Portia was a heroine in Shakespeare's 'The Merchant of Venice'.
Surname or Lastname
English
English : from Old French poutrel ‘colt’ (Late Latin pultrellus), a metonymic occupational name for someone responsible for keeping horses, or a nickname for a frisky and high-spirited person. This surname is also found in Ireland, Mac Lysaght believing it to be a variant of Purcell.
Boy/Male
Muslim
Canvas
Girl/Female
Hindu
Wisdom
Female
English
English Shakespeare character name derived from Roman Latin Porcius, PORTIA means "pig." A moon of Uranus was given this name.
Male
German
German form of French Percevel, PARZIFAL means "pierced valley."
Male
Spanish
Spanish form of Roman Latin Martialis, MARCIAL means "of/like Mars."
PARTIAL PRESSURE
PARTIAL PRESSURE
Girl/Female
Hindu, Indian
Moonlight
Girl/Female
Hindu, Indian
Gift of God
Boy/Male
German, Hebrew
I See God
Girl/Female
Arabic, Muslim
Partner
Boy/Male
Hindu, Indian
Soft Hearted
Girl/Female
Arabic, Australian, Islamic, Muslim, Pakistani, Portuguese, Russian, Urdu
Hope
Male
Celtic
, hairy.
Boy/Male
Muslim/Islamic
Peon of Paradise
Male
Welsh
Variant spelling of Welsh Glyn, GLYNN means "valley."
Boy/Male
Hebrew
God is my judge.
PARTIAL PRESSURE
PARTIAL PRESSURE
PARTIAL PRESSURE
PARTIAL PRESSURE
PARTIAL PRESSURE
a.
Serving as a partisan in a detached command; as, a partisan officer or corps.
a.
Impartial.
v. t.
To subject to trial by a court-martial.
pl.
of Court-martial
a.
Both renal and portal. See Portal.
n.
A patrial noun. Thus Romanus, a Roman, and Troas, a woman of Troy, are patrial nouns, or patrials.
a.
Pertaining to, or containing, iron; chalybeate; as, martial preparations.
adv.
In part; not totally; as, partially true; the sun partially eclipsed.
a.
Belonging to war, or to an army and navy; -- opposed to civil; as, martial law; a court-martial.
n.
A native Parthia.
n.
Inclined to favor one party in a cause, or one side of a question, more then the other; baised; not indifferent; as, a judge should not be partial.
a.
Not partial; not favoring one more than another; treating all alike; unprejudiced; unbiased; disinterested; equitable; fair; just.
a.
Of, pertaining to, or suited for, war; military; as, martial music; a martial appearance.
v.
Of or pertaining to a husband; as, marital rights, duties, authority.
n.
Pertaining to a subordinate portion; as, a compound umbel is made up of a several partial umbels; a leaflet is often supported by a partial petiole.
a.
Of or pertaining to ancient Parthia, in Asia.
adv.
In a partial manner; with undue bias of mind; with unjust favor or dislike; as, to judge partially.
v.
Admitting of being parted; partible.
n.
Of, pertaining to, or affecting, a part only; not general or universal; not total or entire; as, a partial eclipse of the moon.
v.
Given when departing; as, a parting shot; a parting salute.