A compressed air tank carried by scuba divers has a volume of 9.5 L and a pressure of 140 atm at 20∘C.

Question

If the gas was instead in a cylinder with a floating, massless, frictionless piston, what would the volume of the gas be (in liters) at STP?
Express the volume in liters to two significant digits.

Answer 1

(P1V1/T1) = (P2V2/T2)

Answer 2

66.5

Answer 3

1.2x10^3 L