13. Решение задачи по химии №001 350

2. Under standard conditions, the heat effect of the reaction N2(gas) 3H2(gas) = 2NH3(gas) is 91.6 kJ. The standard enthalpy of formation of ammonia is (in kJ/mol)
1) -91.6
2) -45.8
thirty
4) 45.8
5) 91.6

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