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Jack Uretsky <jlu@hep.anl.gov> 2/20/2008 4:51 pm >>>
Hi Bill-
Please note that my question did not use the word "energy".
Do your students not do such calculations?
I do not understand your response to answer my question. Regards, Jack
Jack Uretsky <jlu@hep.anl.gov> 2/18/2008 11:10 pm >>>
Hi Jeff-
How do you describe what happens when I mix a kilogram of 79
degree water with a kilogram of 40 degree water in an insulated container?
Regards,
Jack
Jack: The kinetic energy of the molecules in the 79 deg. water is redistributed to more molecules which had less KE on the average. The molecules do work on each other during collisions, gaining or losing KE with the ultimate result being a temperature between 79 and 40 (59.5 if we ignore the work done to the inside surface of the container) with an average KE per molecule corresponding to that temp. Were you looking for more than that?