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A sample of 1.00 mol perfect gas molecules with $C_{p,\mathrm m} = 7R/2$ is put through the following cycle: (a) constant-volume heating to twice its initial volume, ...

(Problem 2.5, Atkins Physical Chemistry 8th ed.)


The problem says that in a constant volume process the final volume is twice the initial volume.

Is this even possible? How can volume become twice if it was constant all the time, it wouldn't have exploded to twice its size suddenly after the process ended right?

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  • $\begingroup$ The question is obviously wrong. What's your source? $\endgroup$ – Todd Minehardt Apr 1 '17 at 1:32
  • $\begingroup$ @ToddMinehardt Physical Chemistry by Peter Atkins 8th ed. I took it from my school library. $\endgroup$ – A---B Apr 1 '17 at 1:37
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    $\begingroup$ @ToddMinehardt the 8th ed of Atkins indeed has this weird question: i.stack.imgur.com/enri8.png. The question has been removed in the 10th ed. It is very obviously wrong, I suspect it was meant to be constant pressure. $\endgroup$ – orthocresol Apr 1 '17 at 3:07
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    $\begingroup$ Next time, please include the source with it, and quote it verbatim. That allows people to better judge what's going on. $\endgroup$ – orthocresol Apr 1 '17 at 3:13
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    $\begingroup$ @orthocresol Yes I do so next time I ask a question. $\endgroup$ – A---B Apr 1 '17 at 11:58

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