Match the transformations in column I with appropriate options in column II Column-I Column-II (A) CO2(s) → CO2 (g) (p) phase transition (B) CaCO3(s) → CaO(s) + CO2(g) (q) allotropic change (C) 2H → H2(g) (r) ΔH is positive (D) P(white, solid) → P(red, solid) (s) ΔS is positive (t) ΔS is negative

Engineering

Chemistry

Entropy Calculations

Question

Match the transformations in column I with appropriate options in column II

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[A] CO₂(s) $\to_{}^{}$ CO₂(g)

p, r, s

[B] CaCO₃ (s) $\to_{}^{}$ CaO (s) + CO₂(g)

r, s

[C] 2H $\to_{}^{}$ H₂ (g)

[D] P_white $\to_{}^{}$ P_red

p, q, t