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Re: Entropy and states of matter



Icy again -- Energy is stuff too. (PIC except as in relativity)

bc


Jim Green wrote:

At 13:16 27 02 2002 , you wrote:
Regarding:

Specifically, that means
that the entropy in a region X cannot decrease _except_
by entropy-flow across the boundary of region X.

Wow! "Entropy flow"!

So entropy is stuff now too?

Having the ability to flow and being 'stuff' are two *different*
things.

Larry is quite correct here. The above holds only in the minds of those who
refuse to reformulate their thinking. In the minds of our students, if it
flows, it is stuff -- or at least reified in some sense. Using this sort
of thinking pedagogically is damaging to the students.

Jim Green
mailto:JMGreen@sisna.com
http://users.sisna.com/jmgreen