For the reaction given below, CAo = CBo = 1 mol/L. After 20 minutes A is half used up and the products C, D, and E were

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For the reaction given below, CAo = CBo = 1 mol/L. After 20
minutes A is half used up and the products C, D, and E were present
in the proportion of 6.4, 93.5 and 0.1, respectively. The reaction
for the formation of each of the products is second order. What are
the values of the specific rate of reaction?
A + B -> C k1
A + B -> D k2
A + B -> E k3