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.

💡 Why is B) the correct answer?

The correct answer to the question "Hess's law states that:" is Option B: The total enthalpy change for a reaction is independent of the pathway taken.

The other options — A) Enthalpy depends on temperature only, C) All reactions are exothermic, D) Entropy always increases — are incorrect for this DAT Exam Prep question. As explained above: Hess's law: ΔH for a reaction is the same whether it occurs in one step or multiple steps.

📚 About This DAT Exam Prep Practice Question

This 2-level DAT Exam Prep question from the General Chemistry topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free DAT Exam Prep practice test or use flashcards for spaced repetition review.

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Hess's law states that:

✓ Correct Answer: Option B

📚 About This DAT Exam Prep Practice Question

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