The reaction A + 2B $\rarr$ products was found to have the rate law, rate = k[A] [B]². Predict by what factor the rate of reaction will increase when the concentration of A is doubled and the concentration of B is also doubled.

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Quizplus · Accepted Answer

Doubling the concentration of A increases the rate by a factor of 2 (since the rate law is first order in A: rate ∝ [A]^1). Doubling the concentration of B increases the rate by a factor of 4 (since the rate law is second order in B: rate ∝ [B]^2). Multiplying these factors together (2 for A and 4 for B) gives an overall increase by a factor of 8.

The Reaction a + 2B →\rarr→ Products Was Found to Have the Rate Law, Rate =

The Reaction a + 2B $\rarr$ Products Was Found to Have the Rate Law, Rate =