Use Hess's law to calculate the heat of reaction (AHpx) for the following reactions. 1. Calculate the enthalpy change (AHxn) in kJ for the following reaction: 4NH3(g) + 302(g) → 2N2(g) + 6H2O(1) Use the enthalpy changes for the following reactions to determine the enthalpy change of the above reaction. 2N20(g) → O2(g) + 2N2(g) AH= -164 kJ 2NH3(g) + 3N2O(g) → 4N2(g) + 3H;O(1) AH= -1012 kJ #1 Answer: 1

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