EAMCET Engineering 2004 Solved Paper

Two identical vessels A and B with frictionless pistons contain the same ideal gas at the same temperature and the same volume V. The masses of gas in A and B and mA and mB, respectively. The gases are allowed to expand isothermally to the same final volume 2V. The change in pressures of the gas in A and B are found to be ∆P and 1.5∆P, respectively. Then