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Chemical Equilibrium question

2016 · Q106
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Chemical Equilibrium question

2016 · Q106

NEETChemistryChemical EquilibriumMCQ+4 / −1
Consider the following liquid-vapour equilibrium.
Liquid ⇌\rightleftharpoons⇌ Vapour
Which of the following relations is correct ?
  1. A
    dln⁡PdT2=−ΔHvT2{{d\ln P} \over {d{T^2}}} = {{ - \Delta {H_v}} \over {{T^2}}}dT2dlnP​=T2−ΔHv​​
  2. B
    dln⁡PdT=ΔHvRT2{{d\ln P} \over {dT}} = {{\Delta {H_v}} \over {R{T^2}}}dTdlnP​=RT2ΔHv​​
  3. C
    dln⁡GdT2=ΔHvRT2{{d\ln G} \over {d{T^2}}} = {{\Delta {H_v}} \over {R{T^2}}}dT2dlnG​=RT2ΔHv​​
  4. D
    dln⁡PdT=−ΔHvRT{{d\ln P} \over {dT}} = {{ - \Delta {H_v}} \over {RT}}dTdlnP​=RT−ΔHv​​
View written solutionFree

Correct answer: B

This is Clausius-Clapeyron equation.

dln⁡PdT=ΔHvRT2{{d\ln P} \over {dT}} = {{\Delta {H_v}} \over {R{T^2}}}dTdlnP​=RT2ΔHv​​

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