To produce cooling, the refrigerant must
A. boil and change state in the evaporator.
B. enter the evaporator as cold liquid and leave as hot liquid.
C. freeze and change state in the evaporator.
D. absorb heat and increase pressure in the evaporator.
Answer (2)
The refrigerant must boil and change state in the evaporator to produce cooling by absorbing heat. It enters as a cold liquid, absorbs heat, and exits as a gas, which cools the surroundings. The cooling process is essential for effective temperature regulation in systems like refrigerators and air conditioners. ;
To produce cooling in a refrigeration system, the refrigerant must boil and change state in the evaporator, absorbing heat in the process. This allows it to transition from a cold liquid to a gas, effectively cooling the surrounding area. Therefore, the correct answer is A.
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