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Q.

One mole of an ideal gas at 250C is subjected to expand reversibly ten times of its initial volume. The change in entropy of expansion is

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a

19.15 JK-1 mol-1

b

16.15 JK-1 mol-1

c

22.15 JK-1 mol-1

d

None

answer is A.

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Detailed Solution

∆S=qT=2.303 nRTT log V2V1 =2.303 × 1 × 8.314 log 10 =19.15 JK-1  mol-1
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