Answer: independent of.
- A fully dependent on
- B independent of
- C always double
- D exactly half
Correct answer: B. independent of
Explanation: The half-life of a first-order reaction, t½ = 0.693/k, does not depend on the 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.