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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Filling of gas from a high pressure cylinder into small bottles is an example of a/an __________ process.

Steady
Equilibrium
Unsteady
Adiabatic

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Chemical Engineering Thermodynamics
For a constant volume process

dE = CpdT
dE = CvdT
dW = pdV
dQ = dE + pdV

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Chemical Engineering Thermodynamics
Fugacity of a component in an ideal gas mixture is euqal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at contant pressure and temperature __________ as its mole fraction increases.

Remains constant
Decreases exponentially
Decreases
Increases

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Chemical Engineering Thermodynamics
Out of the following refrigration cycles, which one has the minimum COP (Co-efficient of performance)?

Vapour compression with a reversible expansion engine
Carnot cycle
Ordinary vapour compression cycle
Air cycle

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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/T lnf
μ°+ R lnf
μ° + RT ln f

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Chemical Engineering Thermodynamics
Entropy of a substance remains constant during a/an __________ change.

Reversible adiabatic
Irreversible isothermal
None of these
Reversible isothermal

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