Chemical Engineering Thermodynamics

Pick out the undesirable property for a good refrigerant.

  • A. High thermal conductivity
  • B. Low freezing point
  • C. Large latent heat of vaporisation
  • D. High viscosity
Answer: Option D.

High viscosity is obviously an undesirable property of good refrigerant as it increases the losses of energy converts the useful energy in to non-conservative frictional energy.

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