If a reaction has a very small K_exp\' it is likely to: A) have a positive delta

Question

If a reaction has a very small K_exp' it is likely to: A) have a positive delta G degree' B) have a negative delta G degree' C) occur very slowly D) not be at equilibrium E) A and C The function of the Asp residue in the catalytic triad of chymotrypsin is to: A) bind to the substrate. B) nucleophilically attack the carbonyl of the substrate.. C) stabilize the protonated His by forming a H-bond. D) deprotonate water to activate it to attack the acyl-enzyme intermediate. E) directly accept a proton from the catalytic Ser

Explanation / Answer

3. -----(E)

If Keq is less than than 10-5 (i.e. 0.00001) the reaction hardly goes at all.

We know the relationship, Delta Go = -RT ln Keq

If Keq is very small ( suppose Keq = 0.00001) then Delta Go will be positive because ln Keq is negative value.

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