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Q.

5 mol of an ideal gas expand reversibly from a volume of 8 dm3 sp 80 dm3 at a temperature of 27°C. Calculate the change in entropy.

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a

70.26 JK-1

b

82.55 JK-1

c

95.73 JK-1

d

107.11JK-1

answer is C.

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Detailed Solution

Entropy change (ΔS)=2.303nRlog⁡V2V1=2.303×5×8.314 ×log⁡808=95.73JK−1
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5 mol of an ideal gas expand reversibly from a volume of 8 dm3 sp 80 dm3 at a temperature of 27°C. Calculate the change in entropy.