Chapter 17 - Thermochemistry
Chapter 17 - Thermochemistry
Chapter 17 - Thermochemistry
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3/30/2013How many kJ of heat are absorbed when 0.46 g ofchloroethane (C 2 H 5 Cl, bp 12.3°C) vaporizes at its normal boilingpoint? The molar heat of vaporization of chloroethane is 26.4kJ/mol. Heat of Solution What thermochemical changes canoccur when a solution forms?• During the formation of a solution, heat is eitherreleased or absorbed.• The enthalpy change caused by dissolution of onemole of substance is the molar heat of solution(∆H soln ).• Reference table I25