adiabatic process 2019-09-02T01:35:56Z "In an adiabatic process any change in internal energy (for a system of fixed mass) is solely a consequence of working. For an ideal gas and for most atmospheric systems, compression results in warming, expansion results in cooling." An environmental process during which a system does not thermally interact with its surroundings by virtue of a temperature difference between them. envoAtmo environmental system process