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Re: Entropy: quenched disorder is entropy



----- Original Message -----
From: "David Bowman"

However, if we are to adopt Leigh and David's pedagogical advice, then
ENTROPY is a forbidden word until students hit a stat-mech course, which
is
often not until graduate school. ;-(

Rick

Rick, I think you have misconstrued us. Neither of us consider entropy
to be a forbidden word. Its just that I think a low (teaching) level
association of 'thermodynamic entropy' with 'disorder' *can* be
dangerous if the notions are not sufficiently qualified to prevent
misconceptions, and Leigh, more strongly, thinks it just *is* dangerous
to bring disorder in to a discussion of entropy because it creates and
reinforces major misconceptions.


But the 'definition' you have proposed seems (to me) to rely on language and
principles from stat-mech. If that is the way entropy needs to be
approached, then how can it be done at any lower level. Leigh (I recall)
rejects any teaching of entropy at the HS level. How would you then
describe entropy to the HS student or to the intro level student in a
(non-major's) physics course?

Rick