Consider the dimerization of proflavin:a. Starting with the usual expression for the chemi...

Consider the dimerization of proflavin:

a. Starting with the usual expression for the chemical relaxation time for a dimerization,

derive the alternative form

where [P]t = [P] + 2[P2] is the total concentration of proflavin in the solution and [P] + 2[P2] are the con centrations of proflavin and its dimer at equilibrium.

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b. A bonus from this analysis is that both kj and k j can be obtained by measuring the relaxation rate as a function of [P]t. Plot the following data and determine values for k1 and k-1 The temperature is 25°C.

t (s)	[P]t (M)
3.2 X 10-7	0.5 X 10-3
1.8 X 10-7	2.0 X 10-3
1.4 X 10-7	3.5 X 10-3
1.2 X 10-7	5.0 X 10-3

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c. What is ∆G° at 25°C for the dimerization of proflavin?