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Xi MDCAT XI Complete Chemistry Grand Test #Enthalpy and Internal Energy #Thermochemistry & Thermodynamics

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For the reaction N₂ + 3H₂ ⇌ 2NH₃, what is the relation between ΔH and ΔE?

Verified Answer & Explanation⌄

Correct Answer: D) ΔE − 2RT

Concept Explanation

For N₂ + 3H₂ → 2NH₃, Δn(gas) = 2 − 4 = −2. Using ΔH = ΔE + ΔnRT gives ΔH = ΔE − 2RT.

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