Calculate the average bond enthalpy for the O-H bonds in a water molecule if the dissociation enthalpies for H2O(g) → H(g) + OH(g) and OH(g) → H(g) + O(g) are 502 kJ mol–1 and 427 kJ mol–1, respectively.
A
464.5 kJ mol–1
B
429.5 kJ mol–1
C
502 kJ mol–1
D
427 kJ mol–1

Question

Calculate the average bond enthalpy for the O-H bonds in a water molecule if the dissociation enthalpies for H2O(g) → H(g) + OH(g) and OH(g) → H(g) + O(g) are 502 kJ mol–1 and 427 kJ mol–1, respectively.

A

464.5 kJ mol–1

B

429.5 kJ mol–1

C

502 kJ mol–1

D

427 kJ mol–1

Accepted Answer

464.5 kJ mol–1

Answer

429.5 kJ mol–1

Answer

502 kJ mol–1

Answer

427 kJ mol–1

NEET Chemistry Covalent Bond MCQ Question

Correct Answer

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