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ThermochemistryProblems, - Laney College

refrigerant.TheheatofvaporizationC F 2Cl 2,is158kJ/g.Whatmassof CF 2Cl 2, ... HC 2H 3O 2(l),+ 2O 2(g)! CO 2(g + 2H 2O (l), HC 2H 3O 2(l)+ 4O 2(g) – 871.7 kJ "2CO 2(g + 2H 2O (l) 2. The enthalpy of reaction is ∆H° prod -∆H° react. The reactant is at a higher potential than the product. When the reaction occurs, heat is released ...

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