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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
The value of Cp & Cv respectively for monoatomic gases in Kcal/kg Mole . °K are

3.987 & 1.987
5 & 3
0.66 & 1.987
1.987 & 0.66

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Chemical Engineering Thermodynamics
In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in

Decreased COP
No change in the value of COP
Enhanced COP
Increased or decreased COP ; depending upon the type of refrigerant

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Chemical Engineering Thermodynamics
What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope?

1
2
3

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Chemical Engineering Thermodynamics
When liquid and vapour phase of multi-component system are in equilibrium (at a given temperature and pressure), then chemical potential of each component is

More in liquid phase
Zero in both the phases
More in vapour phase
Same in both the phases

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Chemical Engineering Thermodynamics
The chemical potential for a pure substance is __________ its partial molal free energy.

Equal to
Less than
More than
Not related to

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Chemical Engineering Thermodynamics
The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T₁ and T₂ is given by

T₁/(T₁-T₂)
T₁/T₂
T₂/R1
T₂/(T₁-T₂)

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