MCQ
At constant volume $5\,mol$ gas show increase in temperature by $3.5\,K$ on providing $437.5\,J$ heat then what will be the heat capacity for gas at constant pressure......$J\,K^{-1}\,mol^{-1}$
- A$25$
- B$16.7$
- C$27$
- ✓$33.3$
✓
Answer
Correct option: D.
$33.3$
d
$Cv = \frac{{437.5}}{{3.5 \times 5}} = \frac{{25\,J}}{{mol\,K}}$
$Cv = \frac{{437.5}}{{3.5 \times 5}} = \frac{{25\,J}}{{mol\,K}}$
$\mathrm{Cp}=\mathrm{Cv}+\mathrm{R}=(25+8.3) \,\frac{\mathrm{J}}{\operatorname{mol} \,\mathrm{K}}$
$=33.3 \,\mathrm{JK}^{-1}\, \mathrm{mol}^{-1}$
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