A) \[-1102\text{ }kJ\text{ }mo{{l}^{-1}}\]
B) \[-964\text{ }kJ\text{ }mo{{l}^{-1}}\]
C) \[+352\text{ }kJ\text{ }mo{{l}^{-1}}\]
D) \[+1056\text{ }kJ\text{ }mo{{l}^{-1}}\]
Correct Answer: C
Solution :
\[\frac{1}{2}{{N}_{2}}(g)+\frac{3}{2}H(g)\xrightarrow{{}}N{{H}_{3}}\] \[\Delta {{H}_{f}}=\frac{1}{2}B-{{E}_{N-N}}+\frac{3}{2}B{{E}_{H-H}}-3.B.{{E}_{N-H}}\] \[-46=\frac{1}{2}\times (-712)+\frac{3}{2}\times (-436)-3\times x\] \[x=\frac{1056}{3}=352\,kJ/ml\]You need to login to perform this action.
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