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Mechanical Engineering · Q25

Refrigeration And Air Conditioning

Engineering and GATE · Mechanical Engineering · question 25

Q25

At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant

A.
Decreases
B.
Increases
Answer
C.
Remains same
D.
Depends on other factors

Answer: Option B

Solution

Answer: Option B
Solution:
Refrigerant with a lower latent heat of vaporization will absorb less energy during evaporation than those with higher hfg.
The temperature for a given pressure at which the gaseous refrigerant begins to condense into a liquid.
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