Re: Why do we care about heat?

[Bob Sciamanda <trebor@VELOCITY.NET>]

Yes, E is a state variable; so that specifying a state does uniquely
specify E, but specifying E need not uniquely specify the state.  Eg.: The
infinity of distinctly different ideal gas states on the isothermal
"PV=Constant"  all have exactly the same energy.

Bob

Bob Sciamanda (W3NLV)
Physics, Edinboro Univ of PA (em)
trebor@velocity.net
http://www.velocity.net/~trebor

----- Original Message -----
From: Jim Green <JMGreen@SISNA.COM>
To: <PHYS-L@lists.nau.edu>
Sent: Monday, November 01, 1999 4:17 PM
Subject: Re: Why do we care about heat?


> At 12:43 PM 01-11-99 -0500, you wrote:
> > I should clarify:  I do not wish to imply that specifying the change in
> > energy, E, will alone specify the final state (given the initial
state).
> It won't ????  Isn't E a state variable?  What is my senile mind
missing?
> . . .
> Jim Green