7. Решение задачи по химии №000 762

54. Find the thermal effect of reaction (a), if the thermal effects ΔH of reactions (b) are known (Table 6).
N2 3H2=2NH3 2h2 O2=2H2(l) -571.68 kJ
4NH3 3O2=6H2O 2N2-1530.28 kJ

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