# A container of oxygen has a volume of 349 mL at a temperature of 22.0°C . What volume will the gas occupy at 50.0°C?

##### 2 Answers

We assume a constant pressure. Thus Charles' Law applies.

#### Explanation:

Charles' Law states that at constant pressure, and constant amount of gas, volume is proportional to absolute temperature, i.e.

So

So, in each case,

Thus,

Note that

The final volume will be 382 mL.

#### Explanation:

Charles' law states that the volume of a given amount of a gas kept at constant pressure, is directly proportional to the temperature in Kelvins. http://chemistry.bd.psu.edu/jircitano/gases.html

The equation needed to solve this problem is

**Given/Known**

**Unknown**

**Equation**

**Solution**

Rearrange the equation to isolate