[oceanmd]

I typed it exactly as it is/ Please help solve it. Thank you.
A cylinder of compressed gas has a volume of 30L at 100 atm and 27 degrees C. It is cooled until the cylinder is at 5 atm. What is the new temperature

I need to use the following formula to solve this problem: T2 = P2V2T1 /P1V1
V1 =30L
P1 = 100 atm
T1 = 27 degrees C = 300K
P2 = 5 atm
T2 -?

But I still cannot solve the problem, I need to know V2. Please help solve this problem. Thank you.

[AWK]

What Boyle-Mariotte law says

[Borek]

I need to know V2.

Your gas is all the time in the same rigid cylinder. Does the volume change?