# A container has a volume of #5 L# and holds #1 mol# of gas. If the container is expanded such that its new volume is #9 L#, how many moles of gas must be injected into the container to maintain a constant temperature and pressure?

##### 1 Answer

Jun 24, 2018

#### Explanation:

According to Ideal gas equation,

So for constant pressure and temperature,

Put

You will get