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Doctors Medicines MCQs Q&A

  1. Pressure and phase
  2. Temperature and pressure
  3. Phase and flow
  4. Flow and pressure
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1 Answers

Option 2 : Temperature and pressure

Concept:

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  • In the evaporator, the refrigerant enters at very low pressure and temperature after passing through the expansion valve.
  • This refrigerant absorbs the heat from the substance that is to be cooled so the refrigerant gets heated while the substance gets cooled.
  • The refrigerant leaves the evaporator in the vapour state, mostly superheated and is absorbed by the compressor.
  • In the compressor, the temperature and pressure both increases.
  • After compressor, the refrigerant goes to the condenser where its temperature decreases while pressure is constant.
  • So in the entire cooling cycle the pressure and temperature changes.
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Related Questions

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