STANDARD Physics Enthalpy Changes Match the Following Question
Match the column I with column II and mark the appropriate choice
| Column-I | Column-II |
|---|---|
| (A) CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O | (i) solH° |
| (B) H₂(g) → 2H(g) | (ii) latticeH° |
| (C) NaCl(s) → Na⁺(g) + Cl⁻(g) | (iii) cH° |
| (D) NaCl(s) → Na⁺(aq) + Cl⁻(aq) | (iv) bondH° |
(A) → (iv), (B) → (iii), (C) → (i), (D) → (ii)
(A) → (ii), (B) → (i), (C) → (iv), (D) → (iii)
(A) → (i), (B) → (ii), (C) → (iii), (D) → (iv)
(A) → (iii), (B) → (iv), (C) → (ii), (D) → (i)
Correct Answer
Detailed Explanation
(A) CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O shows combination reaction. (B) H₂(g) → 2H(g) shows bond dissociation. (C) NaCl(s) → Na⁺(g) + Cl⁻(g) shows dissociation of NaCl. (D) NaCl(s) → Na⁺(aq) + Cl⁻(aq) shows dissolution of NaCl.
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