Answer: order of reaction.
- A the molecularity
- B order of reaction
- C the half-life
- D the rate constant
Correct answer: B. order of reaction
Explanation: The overall order is the sum of the exponents of the reactant concentrations in the rate law.
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.