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The reaction N2 + 3 H2 ⇌ 2 NH3 has ΔH = -92 kJ per mole. What kind of reaction is it?
AEndothermic
BPhotochemical
CExothermic
DNuclear
Answer & Solution
Correct answer: C. Exothermic
A negative enthalpy change means heat is released, so the forward reaction is exothermic.
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