# A container has a volume of #18 L# and holds #15 mol# of gas. If the container is compressed such that its new volume is #8 L#, how many moles of gas must be released to maintain a constant temperature and pressure?

##### 1 Answer

Aug 15, 2016

6.67 moles of gas must be released.

#### Explanation:

The answer can be determined by using Avogadro's law:

The number 1 represents the initial conditions and the number 2 represents the final conditions.

Identify your known and unknown variables:

Rearrange the equation to solve for the final number of moles:

Plug in your given values to obtain the final number of moles: