Given the bond energies \[N\equiv N,\,\,H-H\] and \[N-H\] bonds are \[945,\,436\] and \[391\,kJ\,mol{{e}^{-1}}\] respectively, the enthalpy of the following reaction \[{{N}_{2}}(g)+3{{H}_{2}}(g)\to 2N{{H}_{3}}(g)\] is [EAMCET 1992; JIPMER 1997]

Given the bond energies \[N\equiv N,\,\,H-H\] and \[N-H\] bonds are \[

1.	Given the bond energies \[N\equiv N,\,\,H-H\] and \[N-H\] bonds are \[945,\,436\] and \[391\,kJ\,mol{{e}^{-1}}\] respectively, the enthalpy of the following reaction \[{{N}_{2}}(g)+3{{H}_{2}}(g)\to 2N{{H}_{3}}(g)\] is [EAMCET 1992; JIPMER 1997]
A.	\[-93\,kJ\]
B.	\[102\,kJ\]
C.	\[90\,kJ\]
D.	\[105\,kJ\]
Answer» B. \[102\,kJ\]

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Given the bond energies \[N\equiv N,\,\,H-H\] and \[N-H\] bonds are \[945,\,436\] and \[391\,kJ\,mol{{e}^{-1}}\] respectively, the enthalpy of the following reaction \[{{N}_{2}}(g)+3{{H}_{2}}(g)\to 2N{{H}_{3}}(g)\] is [EAMCET 1992; JIPMER 1997]

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