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The variation of K and k(f)/K(b) with te...

The variation of `K` and `k_(f)/K_(b)` with temperature shows the following effects:

A

(a) For endothermic reactions `K` and `K_(f)/K_(b)` both decreases

B

(b) For endothermic reactions `K` and `K_(f)/K_(b)` both increases

C

(c ) For endothermic reactions `K` and `K_(f)/K_(b)` both decreases

D

(d) For endothermic reactions `K` and `K_(f)/K_(b)` both increases

Text Solution

Verified by Experts

The correct Answer is:
b, c
`E_(a)` is always positive thus `K` increases with temperature.
`DeltaH` is -ve, `K_(f)/K_(b)` decreases with temperature.
`DeltaH` is +ve, `K_(f)/K_(b)` increases with temperature.
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