Solved papers for JEE Main & Advanced JEE Main Paper (Held On 9 April 2014)
done JEE Main Paper (Held On 9 April 2014) Total Questions - 1
question_answer1) The standard enthalpy of formation of \[N{{H}_{3}}\] is -46.0 kJ/mol. If the enthalpy of formation of \[{{H}_{2}}\] from its atoms is -436 kJ/mol and that of \[{{N}_{2}}\] is - 712 kJ/mol, the average bond enthalpy of N - H bond in \[N{{H}_{3}}\] is:
[JEE Main Online Paper ( Held On 09 Apirl 2014 )