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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Entropy change of mixing two liquid substances depends upon the

Both A and B
Molar concentration
Quantity (i.e. number of moles)
Neither A nor B

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Chemical Engineering Thermodynamics
Which of the following liquid metals has the highest thermal conductivity?

Molten lead
Molten sodium
Molten potassium
Mercury

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Chemical Engineering Thermodynamics
The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT) = A . x₁. x₂, where A is a constant. The corresponding equation for ln y₁, where y₁ is the activity co-efficient of component 1, is

Ax₁²
A . x₂²
Ax₂
Ax₁

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Chemical Engineering Thermodynamics
The change in __________ is equal to the reversible work for compression in steady state flow process under isothermal condition.

Helmholtz free energy
Gibbs free energy
Internal energy
Enthalpy

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Chemical Engineering Thermodynamics
Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed as the heat of

Vaporisation
None of these
Transition
Fusion

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Chemical Engineering Thermodynamics
Number of components (C), phase (P) and degrees of freedom (F) are related by Gibbs phase rule as

P = F - C - 2
P + F - C = 2
F = C - P - 2
C = P - F + 2

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