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If Ea for the forward and backward react...

If Ea for the forward and backward reaction is 150 and `260 kJ "mol"^(-1)`, then calculate `DeltaH` for the reaction (in `"kJ mol"^(-1)`)

A

410

B

`-110`

C

`-90`

D

`-410`

Text Solution

Verified by Experts

The correct Answer is:
B

`DeltaH = (E_(a))_(f) - (E_(a))_(b)`
`= 150 - 260`
`= -110 "kJ mol"^(-1)`
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