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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Domestic refrigerator usually works on the __________ refrigeration cycle.

Carnot
Air
Vapour-ejection
Absorption

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Chemical Engineering Thermodynamics
The expression for entropy change given by, ΔS = - nR ln (P₂/P₁), holds good for

Expansion of a real gas
Reversible isothermal volume change
Cooling of a real gas
Heating of an ideal gas

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Chemical Engineering Thermodynamics
During Joule-Thomson expansion of gases

None of these
Entropy remains constant
Temperature remains constant
Enthalpy remains constant

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Chemical Engineering Thermodynamics
In the equation PVn = constant, if the value of n = y = Cp/Cv, then it represents a reversible __________ process.

Isothermal
Polytropic
Isentropic
Adiabatic

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Chemical Engineering Thermodynamics
Which of the following is not affected by temperature changes?

Fugacity
None of these
Activity co-efficient
Free energy

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Chemical Engineering Thermodynamics
Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates

Easier plotting
More accurate plotting
Covering of wide range
Use of only one graph for all gases

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