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Chemical Engineering - Chemical Engineering Thermodynamics

Exercise : Chemical Engineering Thermodynamics - Section 8
16.
Gibbs-Duhem equation
states that n1dμ1 + n2dμ2 + ....njdμj = 0, for a system of definite composition at constant temperature and pressure.
applies only to binary systems.
finds no application in gas-liquid equilibria involved in distillation.
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Minimum number of phases that exists in a system is 1. Number of chemical species in a colloidal system is
1
4
2
3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
The internal energy of a gas obeying P (V - b) RT (where, b is a positive constant and has a constant Cv), depends upon its
pressure
volume
temperature
all (a), (b) & (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
"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
Gibbs-Helmholtz equation
Third law of thermodynamics
Joule-Thomson effect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
The internal energy of an ideal gas does not change in a reversible __________ process.
isothermal
adiabatic
isobaric
isometric
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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