A 4 L container of gas at 760 torr is compressed to 2.5 L. What is its new pressure?

Question

Quizplus · Accepted Answer

The pressure of a gas is inversely proportional to its volume when temperature and amount of gas are constant (Boyle's Law: P1V1 = P2V2). So, if the initial pressure (P1) is 760 torr and the initial volume (V1) is 4 L, when the volume is compressed to 2.5 L (V2), the new pressure (P2) can be found by rearranging the equation to P2 = (P1V1)/V2 = (760 torr * 4 L) / 2.5 L = 1216 torr.

A 4 L Container of Gas at 760 Torr Is