Match the relation in Column I with its statement in Column II: Column I (Equation / rule) Column II (Statement) (P) Gibbs-Helmholtz equation (1) Entropy of a perfect crystal is zero at absolute zero

Question

Match the relation in Column I with its statement in Column II:

Column I (Equation / rule)	Column II (Statement)
(P) Gibbs-Helmholtz equation	(1) Entropy of a perfect crystal is zero at absolute zero
(Q) Clausius-Clapeyron equation	(2) $Δ_{v a p} H / T_{b}$ is about 88 J/mol/K for many non-associated liquids
(R) Third law of thermodynamics	(3) Relates the temperature dependence of $Δ G / T$ to $Δ H$
(S) Trouton's rule	(4) Relates change of vapour pressure with temperature to the enthalpy of vaporisation

Choose the option with the correct matching:

TestHub · Accepted Answer

(P) [ ∂ T ∂ ( Δ G / T ) ​ ] P ​ = − T 2 Δ H ​ : (3). (Q) ln ( P 2 ​ / P 1 ​ ) = R Δ v a p ​ H ​ ( 1/ T 1 ​ − 1/ T 2 ​ ) : (4). (R) S → 0 as T → 0 for a perfect crystal: (1). (S) Δ v a p ​ S = Δ v a p ​ H / T b ​ ≈ 88 J/mol/K : (2). Correct matching: P→3; Q→4; R→1; S→2. Answer: (C).

Chemistry - Thermodynamics - II Question with Solution | TestHub

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