First slide
Different type of processes

Two identical containers A and B with frictionless positions 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 of B is mB. The gas in each cylinder is now allowed to expand isothermally to the same final volume 3V. The change in the pressure in A and B are found to be P and 2.5  P respectively. Then


T = Constant,  1V
For Chamber A,  ΔP=PiPt=nARTVnART3V=2nART3V  ------(I)
For Chamber B,  2.5ΔP=PiPt=nBRTVnBRT3V=23nsRTV ------(II)
From equations   (I)  and (II)

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