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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Heating of water under atmospheric pressure is an __________ process.

Isochoric
Adiabatic
Isobaric
Isothermal

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Chemical Engineering Thermodynamics
The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the __________ equation.

Margules
Van Laar
Gibbs-Helmholtz
Gibbs-Duhem

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Chemical Engineering Thermodynamics
The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance.

Cooling
Both B and C
Heating
Simultaneous pressure & temperature change

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Chemical Engineering Thermodynamics
Which of the following is not a unit of the equilibrium constant Kp? (where, Δx = number of moles of products number of moles of reactants)

(atm)Δx, when Δx is positive
(atm)Δx2, when Δx > 0
Dimensionless, when Δx = 0
(atm)Δx, when Δx is negative

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Chemical Engineering Thermodynamics
Second law of thermodynamics is concerned with the

Irreversible processes only
Amount of energy transferred
Non-cyclic processes only
Direction of energy transfer

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Chemical Engineering Thermodynamics
Out of the following refrigeration cycles, which one has maximum COP?

Carnot cycle
Vapor compression with a reversible expansion engine
Air cycle
Ordinary vapor compression cycle

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