An ideal gas obeys PV/T = constant or PV/T = PoVo / To exactly.
P, V, and T are known as "state variables" for specifying two of them fully determines the "state" or condition of an ideal gas.
The ideal gas law can be written as PV = nRT where n specifies how much gas is being considered and R is a universal constant.
This is known as the ideal gas law.
N = number of gas molecules
k = Boltzman's constant
k = 1.38 x 10-23 J/K
n = number of moles
A mole of gas molecules is Avagadro's number NA of molecules,
NA = 6.02 x 1023
[ N = n NA ]
R = universal gas constant
R = 8.314 J/mole-K
For constant pressure, an increase in temperature brings about an increase in volume, according to
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(c) 2002, Doug Davis; all rights reserved
Gases Kinetic Theory Return to ToC, Thermodynamics