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Using the information below determine the change in enthalpy for the following reaction:             2NO(g) +...

Using the information below determine the change in enthalpy for the following reaction:

            2NO(g) + 5 H2(g) → 2NH3(g) + 2H2O(l)

H2(g) + ½ O2(g) →   H2O(l)                     ∆H°= -285.8kJ

N2(g) + O2(g)   → 2NO(g)                     ∆H°= +180.5 kJ

2NH3(g) → N2(g) + 3H2(g)                    ∆H°= + 92.22 kJ

please explain step by step! thanks!

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