Answer: Increases reaction rate.
- A Decreases reaction rate
- B Has no effect on rate
- C Increases reaction rate
- D Changes the products formed
Correct answer: C. Increases reaction rate
Explanation: Higher temperature increases kinetic energy, so more molecules exceed the activation energy barrier.
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.