A refrigerator uses R134a as its refrigerant and operates on a ideal vapour-compression refrigeration cycle between 0.14 MPa and 0.8 MPa. If the mass flow rate of the refrigerant is 0.05 kg/s, the rate of heat rejection to the environment is _______ kW. Given data: At P = 0.14 MPa, h = 236.04 kJ/kg , s = 0.9322 kJ/kgK At P = 0.8 MPa, h = 272.05 kJ/kg (superheated vapour) At P = 0.8 MPa, h = 93.42 kJ/kg (saturated liquid)

A refrigerator uses R134a as its refrigerant and operates on a ideal v

1.	A refrigerator uses R134a as its refrigerant and operates on a ideal vapour-compression refrigeration cycle between 0.14 MPa and 0.8 MPa. If the mass flow rate of the refrigerant is 0.05 kg/s, the rate of heat rejection to the environment is _______ kW. Given data: At P = 0.14 MPa, h = 236.04 kJ/kg , s = 0.9322 kJ/kgK At P = 0.8 MPa, h = 272.05 kJ/kg (superheated vapour) At P = 0.8 MPa, h = 93.42 kJ/kg (saturated liquid)
A.	8.931 kW
B.	89.31 kW
C.	9.831 kW
D.	9.813 kw
Answer» B. 89.31 kW

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A refrigerator uses R134a as its refrigerant and operates on a ideal vapour-compression refrigeration cycle between 0.14 MPa and 0.8 MPa. If the mass flow rate of the refrigerant is 0.05 kg/s, the rate of heat rejection to the environment is _______ kW. Given data: At P = 0.14 MPa, h = 236.04 kJ/kg , s = 0.9322 kJ/kgK At P = 0.8 MPa, h = 272.05 kJ/kg (superheated vapour) At P = 0.8 MPa, h = 93.42 kJ/kg (saturated liquid)

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