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Refrigerators - Coggle Diagram
Refrigerators
Physics
Thermodynamics
Moves heat from the inside to the outside. This involves the first and second laws of thermodynamics, which deal with the conservation of energy and the direction of heat flow.
Heat Transfer
conduction, convection, and radiation to move heat away from the food and into the refrigerant.
Phase Changes
absorbing heat during evaporation (cooling the refrigerator) and releasing heat during condensation (releasing heat outside the refrigerator)
Ideal Gas Law
The ideal gas law (PV=nRT) explains how pressure and volume changes affect the temperature of the refrigerant
Chemistry
Refrigerants
chemical compounds that are designed to evaporate and condense at specific temperatures, enabling efficient heat transfer.
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Biology
Food Preservation
Refrigeration slows down the growth of microorganisms (bacteria, fungi, etc.) and reduces the rate of enzymatic reactions, both of which contribute to food spoilage.
Enzymes
Enzymes are biological catalysts that speed up chemical reactions. Refrigeration slows down these reactions, preventing food from spoiling as quickly.
Refrigerators utilize principles of physics, chemistry, and even biology to keep food cold.
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