A compressed gas occupies a volume of 4.0 L at 25 atm. What volume will the gas occupy at 253 kPa?

Answer 1

Ok, so first we are going to use Boyle's Law, which states the following:

P₁V₁=P₂V₂

This lines up perfectly, so no division or cross multiplying is necessary to get a certain variable isolated.

So, let's go ahead and plug in:

(25 atm)(4.0L)=(2.49atm)(V₂)

100=2.49V₂

100/2.49

V₂= 40.05 L

2 significant figures, so V₂=40 L