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Question: A Container having 1 mole of a gas at a temperature 27°C has a movable piston which maintains at con...

A Container having 1 mole of a gas at a temperature 27°C has a movable piston which maintains at constant pressure in container of 1 atm. The gas is compressed until temperature becomes 127°C. The work done is (Cp for gas is 7.03 cal/mol–K)

A

703 J

B

814 J

C

121 J

D

2035 J

Answer

814 J

Explanation

Solution

At constant pressure

W=PΔV=μRΔT=1×8.31×100=831≈814JW = P\Delta V = \mu R\Delta T = 1 \times 8.31 \times 100 = 831 \approx 814J