KyleR9318 KyleR9318

22-02-2024
Chemistry

contestada

For which of the following reactions does ΔHᵣₓₙ∘ represent an enthalpy of formation, ΔHf∘ ?

(a) C(s)+O₂(g)⟶CO₂(g)
(b) CO₂(g)+H2(g)⟶H₂O(l)+CO(g)
(c) 2H₂(g)+O₂(g)⟶2H₂O(l)
(d) H₂(g)+1/2O₂(g)⟶H₂O(g)
(e) 1/2 N₂(l)+3/2H₂(g)⟶NH₂(g)
(f) 2H₂(g)+C(s)⟶CH₄(g)

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