An endothermic reaction:

A Releases heat

B Absorbs heat (ΔH > 0)

C Has no heat change

D Always occurs spontaneously

✓ Correct Answer: Option B

Endothermic reactions absorb heat from surroundings (positive ΔH). Products have higher enthalpy than reactants.

💡 Why is B) the correct answer?

The correct answer to the question "An endothermic reaction:" is Option B: Absorbs heat (ΔH > 0).

The other options — A) Releases heat, C) Has no heat change, D) Always occurs spontaneously — are incorrect for this PCAT Exam Prep question. As explained above: Endothermic reactions absorb heat from surroundings (positive ΔH). Products have higher enthalpy than reactants.

📚 About This PCAT Exam Prep Practice Question

This 1-level PCAT Exam Prep question from the Chemical Processes 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 PCAT Exam Prep practice test or use flashcards for spaced repetition review.

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An endothermic reaction:

✓ Correct Answer: Option B

📚 About This PCAT Exam Prep Practice Question

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