The standard enthalpy of formation of NH is – 46 kJ mol . If the enthalpy of formation of H from its — NEET Chemistry Past Papers Chemistry Question

Question

The standard enthalpy of formation of NH is – 46 kJ mol . If the enthalpy of formation of H from its atoms is –436 kJ mol and that of N is –712 kJ mol , the average bond enthalpy of N—H bond in NH is: (A) +1056 kJ mol (B) –1102 kJ mol (C) –964 kJ mol (D) +352 kJ mol