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Question: Given that \(C(g) + 4H(g) \rightarrow CH_{4}(g);\Delta H = - 166kJ\). The bond energy \(C - H\) will...

Given that C(g)+4H(g)→CH4(g);ΔH=−166kJC(g) + 4H(g) \rightarrow CH_{4}(g);\Delta H = - 166kJ. The bond energy C−HC - H will be

A

208 kJ/mol

B

– 41.5 kJ/mol

C

832 kJ/mol

D

None of these

Answer

– 41.5 kJ/mol

Explanation

Solution

C(g)+4H(g)→CH4(g);C_{(g)} + 4H(g) \rightarrow CH_{4}(g); ΔH=−166kJ\Delta H = - 166kJ

Bond energy for C – H =−1664=−41.5kJ/mole= - \frac{166}{4} = - 41.5kJ/mole