AP Chemistryhardmcq1 pt
How does a zero-order half-life depend on initial concentration?
A.It increases with [A]₀
B.It decreases with [A]₀
C.It is independent of [A]₀
D.It is undefined
Explanation
Core Concept
t½ = [A]₀/(2k) for zero order — more starting material takes longer to halve at a constant rate.
Correct Answer
AIt increases with [A]₀
More Unit 5: Kinetics practice questions
- mediumA first-order decomposition has a half-life of 12 minutes. What percentage of the original reactant concentration remains after 36 minutes?
- hardWhat is the overall order of a reaction with rate = k[A]⁰[B]²?
- hardWhich energy-profile feature distinguishes a catalyzed pathway from an uncatalyzed one?
- hardAn experiment tracks [A] over time and finds the half-life doubles as [A]₀ halves. What is the reaction order?
- hardWhich reaction is expected to be fastest at room temperature?
Practice more AP Chemistry questions with full explanations
Practice Unit 5: Kinetics Questions →