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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Normal temperature and pressure (N.T.P.) corresponds to

15°C and 760 mm Hg
0°C and 760 mm Hg
0°C and 1 kgf/cm²
20°C and 760 mm Hg

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Chemical Engineering Thermodynamics
In an ideal refrigeration cycle, the change in internal energy of the fluid is

+ve
-ve
Either of the above three ; depends on the nature of refrigerant

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Chemical Engineering Thermodynamics
(∂E/∂T)V is the mathematical expression for

Free energy change
None of these
CV
Enthalpy change

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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
At absolute zero temperature, all substances have the same

Entropy
Crystalline structure
None of these
Heat capacity

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Chemical Engineering Thermodynamics
During Joule-Thomson expansion of gases

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

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