The equilibrium constant for a reaction- A-B- C-D is 1- 10 -2 at 298K and is 2 at 273K- The chemical process resulting in the formation of C and D is-

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Arrhenius Equation

The equilibri...

Question

The equilibrium constant for a reaction, $A + B ⇌ C + D$ is $1 \times 10^{- 2}$ at $298 K$ and is $2$ at $273 K$ . The chemical process resulting in the formation of $C$ and $D$ is:

Exothermic

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Endothermic

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Unpredictable

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There is no relationship between

Δ H

and

K

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Solution

The correct option is A Exothermic
With increase in temperature, the value of the equilibrium constant decreases.
As temperature increases, the amount of products decreases and the amount of reactants increases.
With increase in temperature, the equilibrium shifts to left.
This is characteristic of exothermic reaction.

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