what happens to the volume?

Question

what happens to volume of a gas if its pressure is doubled keeping the temperature constant?

A. remains same

B. doubles

C. halves

D. increases by four times

F. decreases by four times

Answer 1

C. halves

This is seen by Boyle's Law.

P1V1 = P2V2

V2 = P1V1/P2 so if let's say you started with 1 L at a pressure of 1 atm. You then doubled the pressure to 2 atm, you an solve for V2: V2 = (1atm)(1 L)/2 atm and V2 = 1/2 = the volume is half of the original volume.