On Thu, Mar 15, 2012 at 07:25:01PM +0100, Evgenii Rudnyi wrote:
> On 14.03.2012 23:34 Russell Standish said the following:
> >On Wed, Mar 14, 2012 at 07:51:13PM +0100, Evgenii Rudnyi wrote:
> >>
> >>Then the thermodynamic entropy is subjective. Try to convince in
> >>this engineers who develop engines, or chemists who compute
> >>equilibria, and see what happens.
> >
> >I take Denbigh&  Denbigh's position that entropy is not subjective, but
> >rather fixed by convention. Conventions can be entirely
> >objective. This should assuage those engineers you speak of.
> >
> >
> Could you please explain a bit more what you mean? What does it mean
> to fix something by convention?
> Evgenii

We take certain macro variables as thermodynamic state variables,
rather than others. A Laplace daemon would not agree with that.

Its better explained in Denbigh & Denbigh, but Brent Meeker has also
been making the same point.



Prof Russell Standish                  Phone 0425 253119 (mobile)
Principal, High Performance Coders
Visiting Professor of Mathematics      hpco...@hpcoders.com.au
University of New South Wales          http://www.hpcoders.com.au

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