Assuming the pressures were equal at the start, it will slide from the left (having been compressed) to the right. >From the ideal gas law PV = nRT, both have equal nRT;s so the one with smaller V must have higher P and it would then push to the right.
On Wed, 28 May 2025 at 04:59, Nicholas Thompson <[email protected]> wrote: > Side by side, butt-to-butt, two cylinders of air, of equal volume and > equal temperature, but different histories. They are separated by a > frictionless sliding divider which is now pegged. Before compression or > heating, both started with air at 10 degrees C, and after compression or > heating, both arrive at 20 degrees C. The left one has arrived at its > present temperature and volume by being compressed, the right-hand one > by having its volume set to the same value as the left and then having > contents heated. All compartments insulated, all manipulations > quasi-static. Now, remove the peg, allowing the partition between the two > parts to slide, one way or the other. Which way would it slide and why. > What would your explanation be? Please don't read others' answers until > you have submitted your own. > -- > Nicholas S. Thompson > Emeritus Professor of Psychology and Ethology > Clark University > [email protected] > https://wordpress.clarku.edu/nthompson > .- .-.. .-.. / ..-. --- --- - . .-. ... / .- .-. . / .-- .-. --- -. --. / > ... --- -- . / .- .-. . / ..- ... . ..-. ..- .-.. > FRIAM Applied Complexity Group listserv > Fridays 9a-12p Friday St. Johns Cafe / Thursdays 9a-12p Zoom > https://bit.ly/virtualfriam > to (un)subscribe http://redfish.com/mailman/listinfo/friam_redfish.com > FRIAM-COMIC http://friam-comic.blogspot.com/ > archives: 5/2017 thru present > https://redfish.com/pipermail/friam_redfish.com/ > 1/2003 thru 6/2021 http://friam.383.s1.nabble.com/ >
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