vortex-l  

Re: [Vo]:On loss or gain of energy in presure volume work in solids with varying temperature

Harry Veeder
Thu, 17 Apr 2008 18:57:56 -0700

> 
> Title:Inconsistencies in the current thermodynamic description of elastic
> solids
> 
> Authors:Jozsef Garai, Alexandre Laugier
> 
> (Submitted on 17 Aug 2005)
> 
> Abstract: Using the contemporary thermodynamic equations of elastic solids
> leads to contradictions with the fundamental statements of thermodynamics. Two
> examples are presented to expose the inconsistencies. In example one the
> internal energy between the initial and final states shows path dependency
> while in example two changing the temperature of a system at constant volume
> produces mechanical work. These results are contradictory with the
> fundamentals of thermodynamics and indicate that the contemporary description
> of elastic solids needs to be revisited and revised


regarding example two, it doesn't produce work, rather
work must be done ON the system to keep it at constant volume
while the temperature is changed.
yes? no?
Harry

On 17/4/2008 7:15 PM, David Jonsson wrote:

Hi

I have an idea about what this is all about
http://arxiv.org/abs/physics/0508107

The authors talk about inconsistency but my understanding is that it
explains two well known phenomena in everyday life. I want to hear what you
say before I say more.

Can anyone conclude what the two phenomena are?

David