A question about reaction coupling

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Fish419

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Reaction coupling allows for:

A. Addition of the equilibrium constants in a series of sequential steps to give a more spontaneous equilibrium constant.

B. Generation of products that would not normally be formed spontaneously.

C. Increased reaction rates due to coupling of a fast reaction to a slow reaction.

D. Formation of multimeric enzymatic complexes to decrease the overall energy of activation required.

I can eliminate C and D, but cannot quite know what is wrong with A (although I feel B is better than A). Is it because it is not "addition" but "product of equilibrium constants"?
Thanks!
 
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Fish419 said:
Reaction coupling allows for:

A. Addition of the equilibrium constants in a series of sequential steps to give a more spontaneous equilibrium constant.

B. Generation of products that would not normally be formed spontaneously.

C. Increased reaction rates due to coupling of a fast reaction to a slow reaction.

D. Formation of multimeric enzymatic complexes to decrease the overall energy of activation required.

I can eliminate C and D, but cannot quite know what is wrong with A (although I feel B is better than A). Is it because it is not "addition" but "product of equilibrium constants"?
Thanks!
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yup, product of the reaction constant BUT ADDITION of the thermodynamics variables such as Delta G,H or S. Don't confuse the two.
 
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