# 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?

##### 1 Answer

The new temperature will be

#### Explanation:

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

**Given**

**Unknown**

**Solution**

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.

A very good tutorial on the gas laws can be found at http://chemistry.bd.psu.edu/jircitano/gases.html.