Re: [Phys-L] Hydrostatics question

[Peter Schoch <pschoch@nac.net>]

Ah, I think my brains have leaked out over the Summer as much as my students' will have.

Now, while I know that works _ideally_, won't the air temperature rise in the tube?  Since we are compressing it, that means doing work on it, and there is a heat transfer and thermal energy change?

Peter


On Jul 21, 2013, at 7:14 PM, John Denker <jsd@av8n.com> wrote:

> On 07/21/2013 03:27 PM, Peter Schoch wrote:
> > 1.  What is the "modern" law/principle that gives:  "...the spaces
> > occupied by the same quantity of air, are reciprocally as the
> > compressing forces…"
>
> Ideal gas law.  PV = NkT
>
> As a corollary, 
>                 P1     V2
>                ---- = ----
>                 P2     V1
>
> at fixed N and T.
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