Question Detail
Question
The reaction A + 2B → products was found to have the rate law, rate = k[A]²[B]. 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.
Correct Answer
Option D is the correct answer.
Detailed Explanation
Initial rate = k[A]²[B]. New rate = k[2A]²[2B] = k × 4 × 2 × [A]²[B] = 8 × k[A]²[B]. Factor = 8.
Hint
Factor for A² is 2² = 4, factor for B is 2; overall = 4 × 2 = 8.