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Problem 16 - Entrance Test

The rate of a chemical reaction is given by the equation rate = k[A]^2 [B]. If the initial concentrations are [A] = [B] = 1 M, find the rate constant k if the initial rate of reaction is 0.1 M/s.

Correct: A

Using the given equation, rate = k[A]^2 [B]. Given [A] = [B] = 1 M, rate = 0.1 M/s. So, 0.1 = k(1)^2 (1). Therefore, k = 0.1.