JEE Main 20202 Sep, Evening shiftChemistryMediumChemical Thermodynamics84× since 2002
The heat of combustion of ethanol into carbon
dioxide and water is – 327 kcal at constant
pressure. The heat evolved (in cal) at constant
volume and 27^oC (if all gases behave ideally) is
(R = 2 cal mol^–1 K^–1) ________.