The minimum pressure required to compress 600 dm3 of a gas at 1 bar to 150 dm3 at 40°C is
(1) 2.5 bar
(2) 4.0 bar
(3) 0.2 bar
(4) 1.0 bar
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Ans: (2) 4.0 barExplanation: According to ideal gas equation P1V1 = P2V2.Here P1 = 1 bar, V1 = 600 dm3, V2 = 150 dm3, P2 = ?P2=P1V1/V2 = 1×600/150 = 4 bar.
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