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*From*: "Timothy S. Sullivan" <sullivan@KENYON.EDU>*Date*: Sun, 15 Feb 2004 12:00:34 -0500

No law prevents the heat capacity from varying within a single phase. In

fact one of the first illustrations of the macroscopic effects of

quantum mechanics is the calculation of the temperature dependences of

the specific heat of a solid using either the Einstein or Debye models.

The specific heat of water does vary with temperature (but not much).

One source I googled on the web gives data that the specific heat of

water varies by about 1% from 22 degrees C to 100 degrees C.

Tim Sullivan

sullivan@kenyon.edu

On Sun, 2004-02-15 at 10:50, Tony Wayne wrote:

WITHIN A PHASE, does the specific heat of a substance have any varian=

ce=20

with temperature? In other words, does the specific heat of water=

=20

(liquid phase) have a range from say 4185.8 to 4186.3 J/C=95kg (arbit=

rary=20

numbers for example only) from 0 to 100 degrees C?

-Tony

----------------------------------------------

Tony Wayne

http://physics.k12albemarle.org

- -

Those who can, do.

Those who understand, teach.

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