Expansion and compression work —often referred to as pressure-volume ( PV ) work —is the work involved when a system expands or contracts ag...
Expansion and compression work—often referred to as pressure-volume (PV) work—is the work involved when a system expands or contracts against an external pressure. It is a fundamental concept in chemical thermodynamics, describing how energy is transferred as mechanical work between a system (such as a reaction mixture or a gas contained in a cylinder) and its surroundings.
