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Q: The expected quality of a refrigerant is –
  • A. Low boiling point
  • B. High critical temperature
  • C. High latent heat of evaporation
  • D. all the above
Correct Answer: Option D - The required properties in a refrigerant should be low boiling point, high critical temperatures, high latent heat of evaporation etc.Expected quality 1 - Latent heat must be high 2- Freezing point should be less 3- The critical temperature should be higher 4- The heat conductivity should be high 5- Refrigerant temperature should be low.
D. The required properties in a refrigerant should be low boiling point, high critical temperatures, high latent heat of evaporation etc.Expected quality 1 - Latent heat must be high 2- Freezing point should be less 3- The critical temperature should be higher 4- The heat conductivity should be high 5- Refrigerant temperature should be low.

Explanations:

The required properties in a refrigerant should be low boiling point, high critical temperatures, high latent heat of evaporation etc.Expected quality 1 - Latent heat must be high 2- Freezing point should be less 3- The critical temperature should be higher 4- The heat conductivity should be high 5- Refrigerant temperature should be low.