Refrigeration and Air Conditioning
Which of the following statement is wrong?

None of the listed here
In a vapour compression system, the condition of refrigerant before entering the compressor is dry saturated vapour
The space between the saturated liquid line and saturated vapour line, in a pressure enthalpy chart, is wet vapour region
The value of C.O.P. is always greater than one

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Refrigeration and Air Conditioning
The bypass factor, in case of sensible cooling of air, is given by (where td₁ = Dry bulb temperature of air entering the cooling coil, td₂ = Dry bulb temperature of air leaving the cooling coil, and td₃ = Dry bulb temperature of the cooling coil)

(td₂ -td₃)/( td₁ -td₃)
(td₃ -td₁)/( td₂ -td₃)
(td₃ -td₂)/( td₁ -td₃)
(td₁ -td₃)/( td₂ -td₃)

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