A) - 100
B) + 100
C) + 342
D) ? 342
Correct Answer: A
Solution :
\[\Delta H=+35.3\,kJ/mol\] \[T={{80}^{o}}C=80+273=353\,K\] \[\Delta S=\frac{\Delta H}{T}=\frac{+\,35.3}{353}=0.1\,kJ/mol/K\] \[\Delta S=0.1\times {{10}^{3}}=100\,J/mol/K\] Entropy change in the transition of vapour to liquid is negative, \[\Delta S=-100\].You need to login to perform this action.
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