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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
The change in Gibbs freee energy for vaporisation of a pure substance is

Negative
May be positive or negative
Zero
Positive

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Chemical Engineering Thermodynamics
Boiling of liquid is accompanied with increase in the

Specific Gibbs free energy
Vapor pressure
Specific entropy
All of these

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Chemical Engineering Thermodynamics
At absolute zero temperature, all substances have the same

Heat capacity
None of these
Entropy
Crystalline structure

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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.

Van Laar
Gibbs-Duhem
Margules
Gibbs-Helmholtz

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Chemical Engineering Thermodynamics
One ton of refrigeration is defined as the heat rate corresponding to melting of one ton of ice in one

Minute
Second
Hour
Day

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Chemical Engineering Thermodynamics
In case of the decomposition of hydroiodic acid (2HI ⇋ H₂ + I₂), addition of H₂ (at equilibrium condition) will

None of these
Decrease the partial pressure of HI
Diminish the degree of dissociation of HI
Increase the partial pressure of I₂

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