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Chemical Engineering - Chemical Engineering Thermodynamics

Exercise : Chemical Engineering Thermodynamics - Section 7
46.
Melting of wax is accompanied with __________ in entropy.
increase
decrease
no change
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
A thermodynamic system is taken from state A to B along ACB and is brought back to A along BDA as shown below in the P-V diagram.

The net work done during the complete cycle is given by the area covered by
P1ACBP2P1
ACBB1A1A
ACBDA
ADBB1A1A
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
Work done in case of free expansion is
indeterminate
zero
negative
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The reatio of chemical potential to free energy of a pure substance at oconstant temperature and pressure is
0
1
∞
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
During adiabatic expansion of gas
pressure remains constant.
pressure is increased.
temperature remains constant.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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