Charles's Law:

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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,

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

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

V1 / T1 = V2 / T2

1. V1 is the initial volume
2. T1 is the initial temperature
3. V2 is the final volume
4. T2 is the final temperature

V2 = V1 (T2 / T1)

1. V2 is the final volume
2. T2 is the final temperature
3. V1 is the initial volume
4. T1 is the initial temperature

Important:

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.
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