Bottling in refrigeration is defined as?

Bottling in refrigeration refers to the situation where refrigerant is held in the condenser due to pressure differences. This process occurs when the refrigerant, after having absorbed heat from the environment in the evaporator, is compressed and then transferred to the condenser. In the condenser, the refrigerant loses heat and changes from a gas to a liquid state under high pressure. The term "bottling" conveys the idea that the refrigerant is effectively stored or contained in the condenser until it is ready to flow back into the system, completing the refrigeration cycle.

The other options present definitions that either misrepresent the refrigeration cycle or describe different phenomena. For instance, while refrigerant stored in the evaporator is an important part of the system, it doesn't capture the essence of bottling, which specifically involves the condenser. Leaks indicate a loss of refrigerant rather than a storage situation, and refrigerant condensed into liquid at the evaporator is a mischaracterization, as condensation primarily occurs in the condenser, not the evaporator.