InterviewSolution
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InterviewSolution
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A gas can expand from 1oo ml to 250 ml under a constant pressure of 2 atm. The work done by the gas is …(a) -30.39 J (b) 25 J (c) 5 kJ (d) 16 J |
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Answer» (a) -30.39 J ∆V = expansion in volume = 100 to 250 ∆V = V2 – V1 = 250 – 100 ∆V = 150 ml = 0.15 litre Work done = ? Pressure = 2 atm w = -P∆V = -2 x 0.15 litre x 101.3 JL-1 atm-1 = -30.39 J. |
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