High _____________ is an undesirable property for a good refrigerant?
Correct answer: D. Viscosity
- A. Specific heat
- B. Latent heat of vaporisation
- C. Specific vapor volume
- D. Viscosity
Explanation
High viscosity is undesirable because it increases frictional pressure losses and makes circulation through the refrigeration system more difficult. A good refrigerant generally has low viscosity, while high latent heat is advantageous.
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