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How much energy (in kilojoules) is released when 30.5g of ethanol vapor at 97.5?C is cooled...

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Chemistry

How much energy (in kilojoules) is released when 30.5g ofethanol vapor at 97.5?C is cooled to -16.5?C? Ethanol has mp =-114.5 ?C, bp = 78.4 ?C, ?Hvap = 38.56 kJ/mol and ?Hfusion = 4.60kJ/mol. The molar heat capacity is 113 J/(K?mol) for the liquid and65.7 J/(K?mol) for the vapor.

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4.3 Ratings (952 Votes)
Hi heat capacity of ethanol is 113 joules per mole per degree Kelvin This means that ethanol loses 113 joules for every degree it cools if youre talking about one mole If youve got two moles it would be 2 x 113 joules or 216 and if it were    See Answer
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