Work that gas can do equals heat energy in gas {gas law} {ideal gas law, work}: P*V = n*R*T, where P is pressure, V is volume, n is moles, R is gas constant, and T is absolute temperature. Pressure times gas volume is work that gas can do. Product of gas moles and absolute temperature and gas constant is gas heat energy.
volume
Volume {molar volume} of one mole of ideal gas at standard temperature of 25 C and standard pressure of one atmosphere is 22.4 liters.
ideal gas
Ideal gas law assumes that molecules have elastic collisions, have no volume, and have no forces among them. At low pressure, real gas has less pressure than ideal gas, because molecules attract each other. At high pressure, real gas has higher pressure than ideal gas, because molecules repulse each other.
modifications
Ideal-gas-law modifications {van der Waals equation} {virial equation} account for molecule sizes and interactions.
Physical Sciences>Chemistry>Inorganic>Phase
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Date Modified: 2022.0224