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Chemical Engineering - Chemical Engineering Thermodynamics

Exercise : Chemical Engineering Thermodynamics - Section 3
11.
Which of the following is not a reversible process ?
Expansion of an ideal gas against constant pressure.
Atmospheric pressure vaporisation of water at 100°C.
Solution of NaCl in water at 50°C.
None of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Pick out the wrong statement.
A closed system does not permit exchange of mass with its surroundings but may permit exchange of energy.
An open system permits exchange of both mass and energy with its surroundings.
The term microstate is used to characterise an individual, whereas macro-state is used to designate a group of micro-states with common characteristics.
none of the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Which of the following exemplifies an adiabatic process ?
Melting of ice.
Condensation of alcohol vapor.
Sudden bursting of a cycle tube.
Evaporation of water.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Entropy, which is a measure of the disorder of a system is
independent of pressure.
independent of temperature.
zero at absolute zero temperature for a perfect crystalline substance.
all (a), (b) & (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Critical temperature is defined as the temperature above which a gas will
not liquify (barring exceptions).
immediately liquify.
never liquify however high the pressure may be.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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