# A gas is held at 3.8 atm and 500 K. If the pressure is then decreased to 1.2 atm, what will the new temperature be?

##### 1 Answer

Mar 18, 2017

The final temperature will be

#### Explanation:

This question involves Gay-Lussac's law to answer, which states that the pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature.

This means that as the pressure goes up, the temperature also goes up, and vice-versa.

**The equation to use is:**

where

**Given/Known Information**

**Unknown:**

**Solution**

Rearrange the equation to isolate