The heat of combustion of ethanol into carbon dioxides and water is –327kcal at constant pressure. The heat evolved (in cal) at constant volume at 27°C (if all gases behave ideally) is (R=2calmol⁻¹K⁻¹) [numerical value].
The heat of combustion of ethanol into carbon dioxides and water is –327kcal at constant pressure. The heat evolved (in cal) at constant volume at 27°C (if all gases behave ideally) is (R=2calmol⁻¹K⁻¹) [numerical value].
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1 Answer
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ΔH=ΔU+ΔnRT. ΔU = -327000 - (1)2300 = -327600 cal.
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