GATE CY topic:equilibrium PYQs & Answers — Page 7

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topic:equilibrium

Questions 61–68 of 68. Imported answers require independent review unless marked reviewed.

Topic practice 68 questionsPage 7 of 7

The enthalpy of vaporization of a liquid at its boiling point (Tᵦ = 200 K) is 15.3 kJ mol⁻¹. If the molar volumes of the liquid and the vapour at 200 K are 110 and 12000 cm³ mol⁻¹ respectively, then the slope

of the liquid-vapour boundary is ________ kPa K⁻¹. (Up to two decimal places. Note: 1 Pa = 1 J m⁻³)

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Consider

particles at temperature

, pressure

, volume

and chemical potential

having energy

. The parameters that are kept constant for a canonical ensemble are

Your answerChoose one option.

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m₁ and m₂ are the slopes (dP/dT) of the solid-liquid equilibrium lines in the P-T phase diagrams of H₂O and CO₂, respectively. For P < 10 atm, the values of m₁ and m₂ are

Your answerChoose one option.

m₁ > 0 and m₂ > 0

m₁ > 0 and m₂ < 0

m₁ < 0 and m₂ < 0

m₁ < 0 and m₂ > 0

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Consider an ideal gas of volume

at temperature

and pressure

. If the entropy of the gas is

, the partial derivative

is equal to

Your answerChoose one option.

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The mobility of a univalent ion in aqueous solution is

at 300 K. Its diffusion coefficient at 300 K is

. The value of X is __________ (up to two decimal places)

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The standard Gibbs free energy change of the reaction shown below is −2.7 kJ mol

Sn(s) + Pb

= Sn

+ Pb(s)

Given that

is −0.126 V, the value of

in V is __________ (up to two decimal places)

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The ionic activity coefficients of Ca

and F

are 0.72 and 0.28, respectively. The mean activity coefficient of CaF

is __________ (up to two decimal places)

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The Gibbs free energy of mixing is denoted as

. 1.0 mole of He, 3.0 moles of Ne and 2.0 moles of Ar are mixed at the same pressure and temperature. Assuming ideal gas behavior, the value of

is ______ (up to two decimal places)

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GATE CY topic:equilibrium PYQs

Question 47

Question 1

Question 3

Question 5

Question 26

Question 30

Question 32

Question 34