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Question 800003
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Chemical Thermodynamics and Thermochemistry: Exo/endothermic MCQ

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Exo/endothermicEasyQuestion 800003

Question

An exothermic reaction has:
  1. A
    ΔH < 0 (releases heat)
    Correct
  2. B
    ΔH > 0
  3. C
    ΔS > 0 always
  4. D
    ΔG > 0

Correct answer

ΔH < 0 (releases heat)

Explanation

Exothermic: heat is released to surroundings → ΔH < 0. Endothermic: heat is absorbed from surroundings → ΔH > 0.

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