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Chemical Engineering - Chemical Engineering Thermodynamics

Exercise : Chemical Engineering Thermodynamics - Section 1
11.
A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect ?
Vapor compression cycle using expansion valve.
Air refrigeration cycle.
Vapor compression cycle using expansion engine.
Carnot refrigeration cycle.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
In a working refrigerator, the value of COP is always
0
< 0
< 1
> 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
__________ increases with increase in pressure.
The melting point of wax
The boiling point of a liquid
both (a) and (b)
neither (a) nor (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
A refrigerator may be termed as a
heat pump
heat engine
Carnot engine
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases.
decreases
increases
remains same
decreases linearly
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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