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Solve for the enthalpy change when 45.1 g of H,O changes from the gas to the liquid phase. AH = 40.7 kJ/mol and C for water v
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Answer #1

Molecular weight of H₂O = 18 g/mol .: 45.19 of H20 = 45:18 = 2.51 mol . 4Hrap = 40.7 Kg /mol ... The enthalpy chang =-40.75 /

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