Gay-Lussac's Law Calculator

Find the new pressure of a gas when temperature changes at constant volume.

Final pressure (kPa) 133.33

Formula: P₁/T₁ = P₂/T₂

Step-by-step with your numbers:

1. Values used:

2. Initial pressure = 100 kPa

3. Initial temperature = 300 K

4. Final temperature = 400 K

6. Final pressure = 133.33kPa

Did we solve your problem today?

Gay-Lussac's law: at constant volume, gas pressure rises with absolute temperature.

The math behind it

P₁/T₁ = P₂/T₂. Heating a sealed rigid container increases its pressure.

100 kPa at 300 K heated to 400 K → about 133 kPa.

Why do aerosol cans warn against heat?

Heating raises internal pressure and can burst the can.