Problem Set 8; Enzyme mechanisms Page 1 of 3 Proble Quest and w Question 1: Full

Question

Problem Set 8; Enzyme mechanisms Page 1 of 3 Proble Quest and w Question 1: Fully label with names or descriptions, NOT values the reaction coordinate diagram of an enzyme-catalyzed (continuous line) vs. uncatalyzed reaction (dashed line). a) What is the value of ?Go, for the reaction? b) Is the reaction spontaneous in the direction written (left to right)? c) What is the value of ?G" for the catalyzed reaction? d) What is the value of ?G# for the uncatalyzed reaction? e) Calculate the rate enhancement for this reaction. Qu Energy kJ/mol

Explanation / Answer

?Grexn = ?G(products)- ?G(reactants)

So,

a) ?G° = (-3-0)kJ/mol = -3kJ/mol

b) Since the value of ?G° is negative, this means the reaction. is spontaneous.

c) ?G#(catalysed) = (3-0)kJ/mol = 3kJ/mol

d) ?G#(un catalysed) = (7-0)kJ/mol = 7kJ/mol

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