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Re: Stop using calories?



Ludwig wrote:
. . .
Yes, Bob, I see the "ideal gas" wording in your message. This brings
another line of questions. The ideal gas will probably not be Q-ed at all.
I suspect that it would offer no resistance to the accelrating paddles.
Is this correct? The presence of the gas will increase the moment of
inertia of the the rotating system without contributing to Q-ing.

The gas certainly would get energy from the paddle wheel and, at least
after the wheel has stopped, this energy will be "thermalized" and increase
the gas temperature. When all has settled, ALL of the energy acquired by
the gas is outside!

Bob Sciamanda sciamanda@edinboro.edu
Dept of Physics sciamanda@worldnet.att.net
Edinboro Univ of PA http://www.edinboro.edu/~sciamanda/home.html