GATE CY 2019 Paper 1 — page 6

Questions 16–18 of 65. Imported answers require review unless explicitly marked reviewed.

In Freundlich isotherm, a linear relationship is obtained in the plot of (

= surface coverage and

= partial pressure of the gas)

Your answerChoose one option.

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Micelle formation is accompanied by the

Your answerChoose one option.

decrease in overall entropy due to ordering.

increase in overall entropy mostly due to increase in solvent entropy.

increase in overall entropy mostly due to increase in solute entropy.

increase in overall entropy and decrease in enthalpy.

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Consider the following phase diagram of CO₂ (not to scale). At equilibrium, the INCORRECT statement is:

Your answerChoose one option.

At 200 K, on increasing the pressure from 1 to 50 atm, CO₂ gas condenses to liquid.

It is not possible to obtain liquid CO₂ from gaseous CO₂ below 5.11 atm.

Both liquid and gas phase of CO₂ coexist at 298.15 K and 67 atm.

With increasing pressure, the melting point of solid CO₂ increases.

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2019 · Paper 1