The commonly used refrigerant in domestic refrigerators is:

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SSC JE ME Previous Paper 9 (Held on: 27 Sep 2019 Evening)
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  1. Ammonia
  2. CO2
  3. Nitrogen
  4. R 134a

Answer (Detailed Solution Below)

Option 4 : R 134a
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Detailed Solution

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Explanation:

  • Domestic refrigerators generally run on the vapor compression cycle. In this cycle, a circulating refrigerant such as R134a enters a compressor as low-pressure vapour at or slightly below the temperature of the refrigerator space.
  • Ammonia is generally used in the vapour absorption cycle.
  • Nitrogen and CO2 are not used as refrigerants.

26 June 1

The R 134a is an eco-friendly refrigerant.

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