Re: [Phys-l] PV question

[Brian Whatcott <betwys1@sbcglobal.net>]

I offered that:
> > ... a straight line on a P-V diagram would cross isotherms  
> > unnecessarily - so cannot be reversible
> >
> >     
  John Mallinckrodt responded:
   
   Cutting isotherms once, twice, or arbitrarily many times is 
irrelevant to the question of whether or not a process is reversible.

John Mallinckrodt


There is evidently some reversible process, perhaps many processes, that 
(in the case of current interest) can travel between limiting 
temperature values  but during this trajectory allow the temperature to 
change in a non-monotonic way, while the associated pressure and  volume 
both change.    I wonder what an example of this would look like?

Brian W