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Postby aaronharouni » Sat Mar 09, 2019 12:01 pm

Why doesn't a catalyst/enzyme change the reaction rate?

Soumya Ravichandran 4H
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Re: catalyst/enzyme

Postby Soumya Ravichandran 4H » Sat Mar 09, 2019 12:08 pm

A catalyst/enzyme does change the rate of the reaction by changing the activation energy needed for the reaction to proceed to completion.

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Re: catalyst/enzyme

Postby Heesu_Kim_1F » Sat Mar 09, 2019 12:28 pm

^I agree. A catalyst/enzyme does change/increases the rate of reaction by lowering the activation energy. However, a catalyst/enzyme does not change the equilibrium constant for a reaction. Also, a catalyst or enzyme (itself) is not changed during a reaction.
Hope this helps!

Diana Bibireata 1B
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Re: catalyst/enzyme

Postby Diana Bibireata 1B » Sat Mar 09, 2019 7:24 pm

A catalyst lowers the activation energy so it ends up speeding up the rate of the reaction.

Jocelyne Milke 1G
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Re: catalyst/enzyme

Postby Jocelyne Milke 1G » Sun Mar 10, 2019 4:20 pm

A catalyst speeds up the reaction but does not get consumed in the reaction and doesn't change the rate constant.

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