Charles's Law

Charles's Law can be stated as the volume occupied by any sample of gas at a constant pressure is directly proportional to the absolute temperature.

V / T =constant

V is the volume
T is the absolute temperature (measured in Kelvin)

Charles's Law can be expressed into two other useful equations.

1) V1 / T1 = V2 / T2

2) V2 = V1 (T2 / T1)


V1 is the initial volume
T1 is the initial temperature
V2 is the final volume
T2 is the final temperature

Charles's Law only works when the pressure is constant.

Note: Charles's Law is fairly accurate but gases tend to deviate from it at very high and low pressures.