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OpenStudy (anonymous):
Help please..Calculate the enthalpy change, ΔH, for the process in which 38.7g of water is converted from liquid at 19.5∘C to vapor at 25.0∘C . For water, ΔHvap = 44.0kJ/mol at 25.0∘C and s = 4.18J/(g⋅∘C) for H2O(l) Express your answer numerically in kilojoules.
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