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Chemical Engineering Thermodynamics

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

3.5
0.5
8.5
4.5

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Chemical Engineering Thermodynamics
Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature of the gas )

1/√T
T²
√T
T

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Chemical Engineering Thermodynamics
A system in which there is exchange of energy but not of mass, is called a/an __________ system.

Closed
Isolated
Insulated
Open

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Chemical Engineering Thermodynamics
Refrigerants commonly used for domestic refrigerators are

Ethyl chloride or methyle chloride
NH₃ or CO₂
Propane
Freon-12

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Chemical Engineering Thermodynamics
Mollier chart is a __________ plot.

Pressure vs volume
Enthalpy vs entropy
Temperature vs entropy
Pressure vs enthalpy

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Chemical Engineering Thermodynamics
Air enters an adiabatic compressor at 300K. The exit temperature for a compression ratio of 3, assuming air to be an ideal gas (Y = Cp/Cv = 7/5) and the process to be reversible, is

300(33/7)
300(35/7)
300(33/5)
300(32/7)

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