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Q.

Calculate the molar entropy change when a sample of hydrogen gas expands isothermally to twice of its initial volume

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a

+5.76JK−1mol−1

b

−5.76JK−1mol−1

c

+11.52JK−1mol−1

d

−11.52JK−1mol−1

answer is A.

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Detailed Solution

ΔS=2.303nRlog10VfVi=2.303×1×8.314log1021ΔS=+5.76JK-1mol-1
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Calculate the molar entropy change when a sample of hydrogen gas expands isothermally to twice of its initial volume