Chemistry
Intermediate

Ideal Gas Law

Relates pressure, volume, moles and temperature of a gas.

Formula

PV=nRTPV = nRT

Variables

PPressure
VVolume
nMoles
R8.314 J/mol·K
TTemperature (K)

Example

One mole of gas at 0 °C and 1 atm occupies 22.4 L (PV = nRT).

Did You Know?

The ideal gas law combines three older laws into one, and works because gas molecules are mostly empty space.