1.

The bond dissociation energy of C-H in CH_4 from the equation C(g) + 4H(g) to CH_4(g), DeltaH = -397.8 kcal is :

Answer»

`+ 99.45 KCAL`
`-99.45 kcal`
`+397 .8 kcal`
`+ 198.9 kcal`

ANSWER :A


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