Two identical containers A and B with frictionless pistons contain the same ideal gas…
PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics
Problem
Two identical containers A and B with frictionless pistons contain the same ideal gas at the same temperature and the same volume V. The mass of the gas in A is mA, and that in B is mB. The gas in each cylinder is now allowed to expand isothermally to the same final volume 2V. The changes in the pressure in A and B are found to be ΔP and 1.5ΔP respectively. Then
(1) 4mA=9mB
(2) 2mA=3mB
(3) 3mA=2mB
(4) 9mA=4mB