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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Which of the following exemplifies an adiabatic process?

Sudden bursting of a cycle tube
Melting of ice
Evaporation of water
Condensation of alcohol vapor

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Chemical Engineering Thermodynamics
Gibbs free energy of mixing at constant pressure and temperature is always

∞
- ve
+ ve

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Chemical Engineering Thermodynamics
Ideal gas law is applicable at

Low T, high P
High T, low P
Low T, low P
High T, high P

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Chemical Engineering Thermodynamics
At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is

4.238
1.9398
1.572
3.389

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Chemical Engineering Thermodynamics
The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the __________ temperature.

Critical
Reduced
Inversion
Boyle

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Chemical Engineering Thermodynamics
The temperature at the eutectic point of the system is the __________ temperature that can be attained in the system.

Highest
Average
Lowest
None of these

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