Zaymiey

🧪 Chemistry  ·  Chemical Kinetics  ·  NEET & JEE

For a reaction with the rate law rate = k[A][B]², the overall order is:

Answer: 3.

  • A 1
  • B 2
  • C 3
  • D 4

Correct answer: C. 3

Explanation: Overall order = 1 + 2 = 3.

First-Order Decay: Constant Half-Lifetime[A][A]₀[A]₀/22 × t½[A]₀/4Each successive half-life takes the SAME amount of time, regardless of starting concentration

First-order decay curve: concentration halves every t½, and that half-life is constant - a defining test for first-order kinetics.

Concept context

Study the speed of reactions and what affects it: concentration, temperature, and catalysts. Covers rate law, order of reaction, the Arrhenius equation, and reaction mechanisms step by step.

Read the full Chemical Kinetics notes →