An isentropic process is a thermodynamic process that is both adiabatic (occurring with no heat transfer to or from the system) and reversible (meaning it can be reversed without entropy generation). In such a process, the entropy of the system remains constant. Isentropic processes are important in various fields of engineering, particularly in thermodynamics and fluid mechanics. For example, they are used to describe the ideal behavior of processes in compressors, turbines, and nozzles.
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