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What is the bond enthalpy of Xe-F bond i...

What is the bond enthalpy of Xe-F bond if Ionization energy of Xe = 279 kcal/mol B.E.(F-F) = 38 kcal/mol, electron affinity of F = 85 kcal//mol

A

`24 kcal//mol`

B

`34kcal//mol`

C

`8.5 kcal//mol`

D

`16.2 kcal//mol`

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta_(r)H = ["Heat supplied"]-["Heat evolved"]`
`292 = [ 4x+279] - [38+85]`
`rArr x = 34 cal//mol`
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