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The equilibrium constant for the reactio...

The equilibrium constant for the reaction `A + B hArr AB` is 0.5 at 200 K. The equilibrium constant for the reaction `AB hArr A + B` would be

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The correct Answer is:
2
For `A + B hArr AB, K = 0.5`, For `AB hArr A + B, K. = (1)/(K) = (1)/(0.5) = 2`
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