Re: [Phys-L] irreversible quasistatic

[Diego Saravia <dsa@unsa.edu.ar>]

> > I will draw two identical cycles (in the sense of having the same
> > vertices and connecting curves). Cycle A will consist purely of
> > reversible processes. Cycle B will consist of at least one
> > irreversible quasistatic process;
>
> Those three sentences are incompatible.  Pick any two.
>
> That is to say, cycle A and cycle B should look different on any
> reasonable "indicator diagram".  If not, some key variable is being
> left out, and the diagram is not a meaningful representation of the
> system.


perhaps a friction force outside the system cycling, if the "friction" heat
is going outside too.