Answer: The rate stays constant and does not depend on the concentration of that reactant.
- A The rate stays constant and does not depend on the concentration of that reactant
- B The rate depends on the square of the concentration of that reactant in general clinical practice
- C The rate doubles every time the concentration of that reactant is doubled as frequently documented
- D The rate drops sharply as the concentration of that reactant decreases in most reference accounts
Correct answer: A. The rate stays constant and does not depend on the concentration of that reactant
Explanation: For a zero-order reaction with respect to a reactant, the rate is independent of that reactant's concentration and remains constant over time.
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.