Gas Laws: Key Definitions and Equations for Chemistry

Charles' Law Equation

V1/T1=V2/T2

Gay-Lussac's Law Equation

P1/T1 = P2/T2

Boyle's Law Equation

P1 V1 = P2 V2

Boyle's Law Graph

Inverse relationship pressure and volume

Charles' Law Graph

Gay-Lussac's Law Graph

units for pressure

kPa (kilopascal) or atm (atmosphere)

units for volume

mL (milliliter) or L (liter)

units for temperature

C (celsius) or K (kelvin)

Boyle's Law

For a given mass of a gas at constant temperature, volume varies inversely with pressure.

Charles' Law

For a given mass of a gas at constant pressure, volume varies directly with temperature.

Gay-Lussac's Law

For a given mass of gas at constant volume, pressure varies directly with temperature.

Combined Gas Law

This law states that the product of the volume and pressure of an ideal gas divided by its temperature is constant

Inverse Relationship

When one goes up, the other goes down.

Direct Relationship

When one goes up, the other goes up.

Boyles