engineering chemistry MCQ #4908

For a reaction with rate law rate = k[A]²[B], if [A] and [B] are both doubled, the rate increases by a factor of

engineering chemistry MCQ #4908

Question 1
Q1. For a reaction with rate law rate = k[A]²[B], if [A] and [B] are both doubled, the rate increases by a factor of
- A) 4
- B) 6
- C) 8
- D) 12
Answer: 8
Explanation: New rate = k(2[A])²(2[B]) = k(4[A]²)(2[B]) = 8k[A]²[B], so rate increases by 8 times.