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On 01/24/2010 11:43 AM, John Mallinckrodt wrote:
QUASISTATIC PROCESS
Definition: A system undergoes a quasistatic process if and only if
no dissipation (or entropy production) occurs within the system.
I don't buy it.
"Static" has a well-established technical meaning.
"Quasistatic" has heretofore meant "almost static"
... which seems sensible and unsurprising. This
definition has always worked for me, and I cannot
imagine why anybody would propose any change, let
alone a highly counterintuitive change.
If you want an example of a physical process that
is quasistatic but clearly dissipative, consider
Joule-Thomson expansion through a porous plug.