Adiabatic cooling

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The cooling of a gas that happens when the gas expands.[1] It happens because the temperature of a body of mass is dictated by the amount of heat energy within over the total mass of the matter. When the mass expands quickly, the same amount of heat energy is present over a much area, creating a cooling effect.


Adiabatic cooling is the basis of most modern cooling devices. It is mechanically exploited by taking a volume of gas and compressing it within a radiator, essentially adiabatically heating the gas. The heated gas will then radiate away, and as the gas passes through to the other side of the radiator it is allowed to expand. Now an amount of the heat energy has been conducted away through the radiator, the expanded gas will be cooler. This mechanism is used in all modern refrigerators and air conditioners.


  1. Wile, Dr. Jay L. Exploring Creation With Physical Science. Apologia Educational Ministries, Inc. 1999, 2000