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The equilibrium constant, K for the reac...

The equilibrium constant, K for the reaction `:`
`2HI (g) hArr H_(2)(g)+I_(2)(g)` at room temperature is `2.85` and that of at `698` K is `1.4 xx 10^(-2)` . This implies that the forward reaction is

A

Exothermic

B

Endothermic

C

Exergonic

D

Unpredictable

Text Solution

Verified by Experts

The correct Answer is:
A
On increasing temperature, the value of equilibrium constant decreases indicating backward shift. Since increase in temperature shifts the equilibrium towards endothermic side. Therefore, forward reaction is exothermic.
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