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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases.

Decreases
Remains same
Increases
Decreases linearly

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Chemical Engineering Thermodynamics
At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by(where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.)

μ° + T lnf
μ°+ R lnf
μ° + RT ln f
μ° + R/T lnf

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Chemical Engineering Thermodynamics
Measurement of thermodynamic property of temperature is facilitated by __________ law of thermodynamics.

Zeroth
3rd
1st
None of these

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Chemical Engineering Thermodynamics
Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is

Zero
Negative
Positive
Infinity

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Chemical Engineering Thermodynamics
Which of the following exemplifies an adiabatic process?

Sudden bursting of a cycle tube
Melting of ice
Condensation of alcohol vapor
Evaporation of water

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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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