A sample of nitrogen gas has a volume of 450 cm3 and a pressure of 125 kPa. What volume would the gas occupy at 90 kPa if the temperature were to remain constant?

V2 = 625 cm^3

Explanation:

P1 * V1 = P2 * V2

P1 (initial pressure) = 125 kPa

V1 (initial volume) = 450 cm^3

P2 (final pressure) = 90kPa

V2 (final volume) = ?

Rearrange the equation to make V2 the subject, since it is the value we are trying to find

V2 = (P1 * V1) / P2

V2 = (125 * 450) / 90

V2 = 625 cm^3