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Flashcards - Gas Laws

Flashcards - Gas Laws
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partial pressure
In a mixture of gases, each gas has a partial pressure which is the hypothetical pressure of that gas if it alone occupied the volume of the mixture at the same temperature
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absolute zero
Absolute zero is the lower limit of the thermodynamic temperature scale, a state at which the enthalpy and entropy of a cooled ideal gas reaches its minimum value, taken as 0
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diffusion
Diffusion is the net movement of molecules or atoms from a region of high concentration to a region of low concentration
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barometer
A barometer is a scientific instrument used in meteorology to measure atmospheric pressure
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atmosphere
An atmosphere is a layer of gases surrounding a planet or other material body, that is held in place by the gravity of that body
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atmosphere
An atmosphere is a layer of gases surrounding a planet or other material body, that is held in place by the gravity of that body
barometer
A barometer is a scientific instrument used in meteorology to measure atmospheric pressure
diffusion
Diffusion is the net movement of molecules or atoms from a region of high concentration to a region of low concentration
absolute zero
Absolute zero is the lower limit of the thermodynamic temperature scale, a state at which the enthalpy and entropy of a cooled ideal gas reaches its minimum value, taken as 0
partial pressure
In a mixture of gases, each gas has a partial pressure which is the hypothetical pressure of that gas if it alone occupied the volume of the mixture at the same temperature
effusion
Effusion is the process in which a gas escapes through a hole of diameter considerably smaller than the mean free path of the molecules
ideal gases
An ideal gas is a theoretical gas composed of many randomly moving point particles that do not interact except when they collide elastically
ideal gas law
The ideal gas law is the equation of state of a hypothetical ideal gas
real gases
Real gases are non-hypothetical gases whose molecules occupy space and have interactions; consequently, they adhere to gas laws
Celsius scale
Celsius, also known as centigrade, is a scale and unit of measurement for temperature
pressure
Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed

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