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    Finding the Heat of Reaction (Enthalpy) from Heats of Formation

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    Calculate the heat of reaction at the standard reference state for the following reactions:

    2CaO(s) + 2MgO(s) + 4H2O(l) ----> 2Ca(OH)2(s) + 2Mg(OH)2(s)

    NaCl(s) + 2SO2(g) + 2H2O(l) + O2(g) ----> 2Na2SO4(s) + 4HCl(g)

    n-C4H10(g) ----> C2H4(g) + C2H6(g)

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    The heat of reaction represents the difference in the enthalpies of the reaction products and reactants at constant pressure and at a definite temperature, with every substance in a definite physical state. If heat is liberated in the reaction, the process is said to be ...

    Solution Summary

    The solution gives a detailed explanation as to how to to calculate heat of reaction from enthalpies of formation.