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Feb 10, 2020 at 0:55 comment added lee_dong-eun Yes, thank you so much.
Feb 9, 2020 at 21:01 comment added Bob D @kimi I have added more detail on the thought experiment you might find helpful.
Feb 9, 2020 at 21:01 history edited Bob D CC BY-SA 4.0
additional information
Feb 9, 2020 at 12:24 comment added Bob D And BTW that’s why the work is proportional to the log of the ratio of the final to initial volumes and not simply the difference as in the case of a constant pressure process where more work is done
Feb 9, 2020 at 12:19 comment added Bob D @kimi each step is infinitesimal but the accumulation for the entire process is not. For example after half the sand has been removed the other half has been elevated the entire height of the expansion to that point. And don’t forget the gas expands against constant atmospheric pressure knee the entire process
Feb 9, 2020 at 10:12 vote accept lee_dong-eun
Feb 9, 2020 at 9:58 comment added lee_dong-eun This is the scenario which led me to ask this question. You say sliding the weight off horizontally requires less work, but the increase in height of the piston is infinitesimal as well, right?
Feb 9, 2020 at 8:42 history answered Bob D CC BY-SA 4.0