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What will be the effect of addition of a catalyst at constant temperature?
- a)The equilibrium constant will remain constant.
- b)ΔH of the reaction will remain constant.
- c)Kf and Kb will increase upto the same extent.
- d)Equilibrium composition will change.
Correct answer is option 'A,B,C'. Can you explain this answer?
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Most Upvoted Answer
What will be the effect of addition of a catalyst at constant tempera...
, Kf and Kb are affected equally and Keq is not affected by the presence of a catalyst.ΔHreaction remains constant. There is no effect of catalyst since,
Both will change up to the same extent.
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What will be the effect of addition of a catalyst at constant tempera...
Effect of Addition of a Catalyst at Constant Temperature:
The addition of a catalyst at constant temperature has several effects on a chemical reaction:
Equilibrium Constant Will Remain Constant:
- The presence of a catalyst does not affect the position of equilibrium in a reversible reaction.
- Therefore, the equilibrium constant (Kc) will remain constant even after the addition of a catalyst.
ΔH of the Reaction Will Remain Constant:
- The enthalpy change (ΔH) of a reaction is not altered by the presence of a catalyst.
- The catalyst provides an alternative pathway for the reaction to proceed, but it does not change the overall energy change of the reaction.
Kf and Kb Will Increase up to the Same Extent:
- The rate of both forward (Kf) and reverse (Kb) reactions will increase upon addition of a catalyst.
- The catalyst lowers the activation energy barrier for both the forward and reverse reactions, leading to an increase in reaction rates.
Equilibrium Composition Will Change:
- Although the position of equilibrium is not affected by the catalyst, the rates of the forward and reverse reactions will change.
- This adjustment in reaction rates may result in a temporary shift in the equilibrium composition until a new equilibrium is established.
In conclusion, the addition of a catalyst at constant temperature does not alter the equilibrium constant, enthalpy change, or overall equilibrium position of a reaction. Instead, it enhances the rates of both forward and reverse reactions, ultimately leading to a new equilibrium composition.
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What will be the effect of addition of a catalyst at constant temperature?a)The equilibrium constant will remain constant.b)ΔH of the reaction will remain constant.c)Kf and Kb will increase upto the same extent.d)Equilibrium composition will change.Correct answer is option 'A,B,C'. Can you explain this answer?
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