# A container has a volume of #48 L# and holds #12 mol# of gas. If the container is compressed such that its new volume is #15 L#, how many moles of gas must be released to maintain a constant temperature and pressure?

##### 1 Answer

Nov 26, 2016

The amount of gas that must be released is

#### Explanation:

This is an example of Avogadro's law, which states that when pressure and temperature are constant, the amount (moles) and volume of a gas are directly proportional, so that if moles increase, so does volume and vice versa.

**Known**

**Unknown**

**Solution**

Rearrange the equation to isolate

Determine how many moles must be removed from the container, subtract