Hess's law states that: A Enthalpy depends on temperature only B The total enthalpy change for a reaction is independent of the pathway taken C All reactions are exothermic D Entropy always increases ✓ Correct Answer: Option B Hess's law: ΔH for a reaction is the same whether it occurs in one step or multiple steps. Practice DAT Exam Prep Quizzes → Browse All Questions Study Flashcards