The volume of a sample of a gas at 273 Kelvin and is 100.0 L. If the volume is decreased to 50.0 L at constant pressure, what will be the new temperature of the gas?
The new temperature will be
This is an example of Charles' law, which states that the volume of a given amount of a gas is directly proportional to its Kelvin temperature. The formula to use for this law is
Rearrange the formula to isolate
The proportionality between volume and temperature can be easily seen in this problem. As the volume decreased by half, the Kelvin temperature decreased by half.