# A 93mL sample of dry air cools from 144°C to -22°C while the pressure is maintained at 2.85 atm. What is the final volume?

##### 1 Answer

The final volume will be

#### Explanation:

This is an example of Charles' law, which states that the volume of a given amount of gas held at constant pressure is directly proportional to the **Kelvin temperature** . This means that if the volume increases, so does the temperature, and vice versa. The formula for this law is:

where:

**Organize the data:**

**Known**

**Unknown**

**Solution**

Rearrange the formula to isolate