Adiabatic expansion is defined as the expansion in which there is no heat interaction of the system with the surroundings and work is done by the system at the expense of its internal energy.
Adiabatic expansion refers to a process in which a gas expands without exchanging heat with its surroundings. During adiabatic expansion, the gas does work on its surroundings, which leads to a decrease in its internal energy and thus a drop in its temperature. This process is governed by the principles of thermodynamics, specifically the first law of thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system.
Adiabatic expansion is a key concept in various applications, such as in the workings of heat engines, refrigerators, and compressors, and in understanding natural processes like the cooling of rising air in the atmosphere.
