4- Use Hess's law to calculate the enthalpy change (in kJ/mol) of Alanine oxidation (ΔH1) using the below individual steps. C3H7NO2(s) + 3O2(g) → 5 2 CO2(g) + 5 2 H2O(l) +1 2 (H2N)C=O(s) ΔH1 =?? (H2N)C=O(s) + 3 2 O2(g)→CO2(g) + 2 H2O(l) + N2(g) ΔH2 = -632 KJ/mol C3H7NO2(s) + 15 4 O2(g) → 3 CO2(g) + 7 2 H2O(l) + 1 2 N2(g) ΔH3 = -1577 KJ/mol

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