Examveda
Examveda

The undesirable property of a refrigerant is

A. Non-toxic

B. Non-flammable

C. Non-explosive

D. High boiling point

Answer: Option D

Solution(By Examveda Team)

It is very important that the refrigerant has a low boiling point, that is it should have the ability to turn into gas easily when it absorbs heat.
If it has a high boiling point, the compressor will have to create too much of a vacuum in order to lower the pressure to make vaporization happen.

Join The Discussion

Related Questions on Refrigeration and Air Conditioning

Nusselt number (NN) is given by

A. $${{\text{N}}_{\text{N}}} = \frac{{{\text{h}}l}}{{\text{k}}}$$

B. $${{\text{N}}_{\text{N}}} = \frac{{\mu {{\text{c}}_{\text{p}}}}}{{\text{k}}}$$

C. $${{\text{N}}_{\text{N}}} = \frac{{\rho {\text{V}}l}}{\mu }$$

D. $${{\text{N}}_{\text{N}}} = \frac{{{{\text{V}}^2}}}{{{\text{t}}{{\text{c}}_{\text{p}}}}}$$