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JEE Main Chemistry Class 11 Chemical Thermodynamics Part 1 Questions

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Question : 76

Total: 100

The standard enthalpy of formation of NH3 is −46.0kJmol−1. If the enthalpy of formation of H2 from its atoms is −436kJmol−1 and that of N2 is −712kJmol−1, the average bond enthalpy of N−H bond in NH3 is

−964kJmol−1
+352kJmol−1
+1056kJmol−1
−1102kJmol−1

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