For combustion of 1 mole of benzene at 25°C, the heat of reaction at constant pressure is…
Chemistry · Class 11 · CBSE — Thermodynamics
For combustion of 1 mole of benzene at 25°C, the heat of reaction at constant pressure is –780.9 kcal. What will be the heat of
reaction at constant volume?
\(\mathrm{C}_{6} \mathrm{H}_{6(l)}+7 \frac{1}{2} \mathrm{O}_{2(g)} \rightarrow 6 \mathrm{CO}_{2(g)}+3 \mathrm{H}_{2} \mathrm{O}_{(l)}\)
reaction at constant volume?
\(\mathrm{C}_{6} \mathrm{H}_{6(l)}+7 \frac{1}{2} \mathrm{O}_{2(g)} \rightarrow 6 \mathrm{CO}_{2(g)}+3 \mathrm{H}_{2} \mathrm{O}_{(l)}\)
- –781.8 kcal
- –780.0 kcal
- 781.8 kcal
- 780.0 kcal
Answer
(A) –781.8 kcal
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