cap h sub 2 cap o has a triangle cap h sub vap is equal to 40 point 7 kJ over mol What is the quantity of heat that is released when 27 point 9 g of cap h sub 2 cap o condenses? Use q is equal to n triangle cap h

First find the amount of water: 27.9 g ÷ 18.02 g/mol = 1.548 mol. Condensation releases the heat of vaporization, so the heat released is 1.548 mol × 40.7 kJ/mol = 63.0 kJ. Therefore, the correct choice is 63.09 kJ.

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