# Charle's Law

Written by Jerry Ratzlaff on . Posted in Thermodynamics

## Charle's Law

Charle's Law (one of the Gas Laws) states that at a constant pressure the volume of a given mass of gas is directly porportional to the absolute temperature.

### Charle's Law Formula

$$\large{ \frac{V_i}{T_i} = \frac{V_f}{T_f} }$$ or $$\large{ \frac{V_f}{V_i} = \frac{T_f}{T_i} }$$ or $$\large{ V_i T_f = V_f T_i }$$

Where:

$$\large{ T_f }$$ = final temperature

$$\large{ T_i }$$ = initial temperature

$$\large{ V_f }$$ = final volume

$$\large{ V_i }$$ = initial volume