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CGP EDU Academic Team
Published on: August 14, 2026
Heat of combustion of ethanol at constant pressure and at 298 K is found to be –Q kJ mol –1 . Hence, heat of combustion of ethanol at the same temperature at constant volume will be
Text Solution
Verified by ExpertsThe correct answer is:
B
C 2 H 5 OH + 3O 2 ⎯→ 2CO 2 + 3H 2 O
X = –Q + Δ nRT Δ n = –1
X = –Q – RT
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