The ratio of the initial to final pressure of a given mass of gas is 1:1.5. Calculate the final volume of the gas if the initial volume was 300 cm³ at the same temperature?

A. 120 cm³
B. 200 cm³
C. 450 cm³
D. 750 cm³

Correct Answer:

Option B – 200 cm³

Explanation

From P1V1 = P2V2
1 X V1 = 1.5 X V2
((1 X 300)/1.5) = V2
∴ V2 = 200 cm³