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(i) What is the effect of adding a catal...

(i) What is the effect of adding a catalyst to a reversible reaction?
(ii) What is the effect of adding an inert gas to a reversible reaction?
(iii) How does temperature change affect a reversible reaction?

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When catalyst is added, the state of equilibrium is not disturbed but equilibrium is attained quickly. This is because the catalyst increases the rate of forward and backward reaction to the same extent.
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