MCQ
$\Delta {S_{{\rm{Total}}}} = - 40\ kJ/mol-K$
$\Delta {H_{{\rm{System}}}} = 2000\ kJ/mol$
$T = 400\ K$
Find out value of $\Delta {S_{{\rm{System}}}}$..........$ kJ/mol-K$
- ✓$-35$
- B$-10$
- C$-40$
- D$-5$
✓
Answer
Correct option: A.
$-35$
a
$\Delta \mathrm{G}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}$
$\Delta \mathrm{G}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}$
$-\mathrm{T} \Delta \mathrm{S}_{\text {Total }}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}_{\text {sys. }}$
$\Delta S_{\text {sys. }}=-35\, \mathrm{kJ} / \mathrm{mol}-\mathrm{K}$
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