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Chemical Engineering:: Chemical Engineering Thermodynamics
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Chemical Engineering Thermodynamics
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Section 1
Exercise
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Section 9
Section 10
Section 11
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1
The freezing point of a liquid decreases when the pressure is increased, if the liquid __________ while freezing.
A.
contracts
B.
expands
C
does not change in volume
D.
either (a), (b) or (c)
Answer & Explanation
Option A
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2
Which of the following is not an intensive property ?
A.
Chemical potential
B.
Surface tension
C
Heat capacity
D.
None of these
Answer & Explanation
Option C
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3
Out of the following refrigration cycles, which one has the minimum COP (Co-efficient of performance)?
A.
Air cycle
B.
Carnot cycle
C
Ordinary vapour compression cycle
D.
Vapour compression with a reversible expansion engine
Answer & Explanation
Option A
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4
Measurement of thermodynamic property of temperature is facilitated by __________ law of thermodynamics.
A.
1st
B.
zeroth
C
3rd
D.
none of these
Answer & Explanation
Option B
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5
The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and n- octane into pure compounds each at 1 atm is
A.
-2 RT ln 0.5
B.
-RT ln 0.5
C
0.5 RT
D.
2 RT
Answer & Explanation
Option B
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