Pressure Volume Work is defined as P * delta V, where P represents constant pressure while the volume (V) changes. This expression is derived from the relationship between force, area, and distance, where pressure (P) is the force per unit area. In scenarios where pressure changes alongside volume, work cannot be performed without a corresponding volume change. A practical example of this concept is observed in hydraulic or pneumatic pistons.
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Yes. There are scenarios where pressure can change along with volume, but you can't have work done with a pressure change and no volume change.sp3sp2sp said:Why isn't it called deltaP *delta V work? Or deltaP*V work?
Does the expression mean that P is constant while V changes...
A hydraulic or pneumatic piston....and also what is an example of that?