R-12 has the __________ freezing point.

More Questions from Heat Transfer, Refrigeration and Air Conditioning

• The temperature of air recorded by a thermometer, when it is not effected by the moisture present in the air, is called
• The wave length of the radiation emitted depends only on the temperature and is independent of the material of the body.
• A condenser is used in the __________ pressure side of a refrigerating system.
• The temperature of air recorded by a thermometer, when the moisture present in it begins to condense, is called wet bulb temperature.
• In figure shown, E is a heat engine with efficiency of 0.4 and R is a refrigerator. It is given that Q2 + Q4 = 3Q1. The C.O.P. of the refrigerator is
• The leakage in a refrigeration system using ammonia is detected by
• During sensible cooling,
• The specific humidity during cooling and dehumidification
• A human body feels comfortable when the heat produced by the metabolism of human body is equal to the
• During heating and humidification, the final relative humidity of air

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