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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
What is the value of ln y (where y = activity co-efficient) for ideal gases?

Unity
Infinity
Negative
Zero

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Chemical Engineering Thermodynamics
Entropy change for an irreversible isolated system is

< 0
> 0
∞

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Chemical Engineering Thermodynamics
If the pressure on 100 c.c. of air is halved, then its volume (at the same temperature) would be __________ c.c.

100
50
205
200

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Chemical Engineering Thermodynamics
When a gas is expanded from high pressure region to low pressure region ; temper -ature change occurs. This phenomenon is related to the

Gibbs-Duhem equation
Joule-Thomson effect
Gibbs-Helmholtz equation
Third law of thermodynamics

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Chemical Engineering Thermodynamics
Which of the following is affected by the temperature?

Activity co-efficient
Free energy
Fugacity
All of these

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Chemical Engineering Thermodynamics
Which is not constant for an ideal gas?

(∂P/∂V)T
All of these
(∂V/∂T)P
(∂P/∂V)V

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MORE MCQ ON Chemical Engineering Thermodynamics

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