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Thermodynamics question

2000 · Q113

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Thermodynamics
2000 · Q113

Thermodynamics question

2000 · Q113

NEETChemistryThermodynamicsMCQ+4 / −1

The entropy change in the fusion of one mole of a solid melting at 27^oC (latent heat of fusion is 2930 J mol^–1) is :

A
9.77 J/mol-K
B
10.77 J/mol-K
C
9.07 J/mol-K
D
0.977 J/mol-K

View written solutionFree

Correct answer: A

$\Delta S = {{\Delta H} \over T}$

= ${{2930} \over {300}}$

= 9.77 J/mol-K

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