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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Trouton's ratio is given by (where λb, = molal heat of vaporisation of a substance at its normal boiling point, kcal/kmol Tb = normal boiling point, °K )

√(Tb/λb)
Tb/λb
λb/Tb
√(λb/Tb)

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Chemical Engineering Thermodynamics
The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of __________ and COP are the same.

None of these
Kinematic viscosity
Work
Temperature

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Chemical Engineering Thermodynamics
COP of a refrigerator drawing 1 kW of power per ton of refrigeration is about

0.5
3.5
8.5
4.5

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Chemical Engineering Thermodynamics
Degree of freedom of a system consisting of a gaseous mixture of H₂ and NH₃ will be

1
2
0
3

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Chemical Engineering Thermodynamics
The equation Tds = dE - PdV applies to

Both B and C
Single phase fluid of varying composition
Open as well as closed systems
Single phase fluid of constant composition

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Chemical Engineering Thermodynamics
Van Laar equation deals with the activity co-efficients in

Binary solutions
None of these
Azeotropic mixture only
Ternary solutions

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