Second-order reaction kinetics show half-life that: A Is constant B Depends on initial concentration (inversely proportional) C Depends on temperature only D Is always 2 minutes ✓ Correct Answer: Option B For second-order: t₁/₂ = 1/(k[A]₀). Half-life increases as concentration decreases. Practice PCAT Exam Prep Quizzes → Browse All Questions Study Flashcards