Two mole of an ideal gas is expanded irreversibly and isothermally at 37∘C until its volume is doubled and 3.41 kJ heat is absorbed from surrounding. ΔStotal (system + surrounding) is :
A
0
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B
0.52J/K
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C
22.52J/K
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D
none of the above
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Solution
The correct option is A0.52J/K ΔSsystem=nRInV2V1=2×R×In2=11.52J/k ΔSsurrounding=3.41×1000310=−11J/K ΔStotal=+11.52−11=+0.52J/K