👉 In physics, "preboiling" refers to a phenomenon where a substance is cooled down to a temperature below its freezing point. This process is often used in the context of cryogenic systems, where substances are cooled and cooled down to temperatures that would cause them to freeze or solidify at room temperature. For example, in a cryogenic refrigerator, preboiling is typically achieved by cooling the refrigerant (such as water vapor) below its freezing point. This can be done through various methods
