Question

CoP is a property which *

1 . Will increase if the door is kept open and operated

2 . Will decrease if the door is kept open and operated

3 . Cannot be changed once the refrigerator is made

4 . It depends only on the heat load applied by the user



can anyone tell this for the questions answer please​

Answer 1

Answer:

First of we need to know that refrigerator is also a machine with heat exchange, refrigerant and compressor.

The refrigerator compressor works till it didn't get the return air set temperature by thermostat.

So it refrigerator is left open in locked room the room temperature will reduce no doubt, but the reduction in room temp. depends on several factors thet effect the room heat gain and the refrigerator condenser heat is also added in room sensible load.