If hot air rises, why is it generally colder at higher elevations?

Newsgroups	sci.physics
From	Sam Wormley <swormley1@gmail.com>
Subject	If hot air rises, why is it generally colder at higher elevations?
Date	2015-10-12 21:42 -0500
Message-ID	<YN2dndg69rsR8oHLnZ2dnUU7-RmdnZ2d@giganews.com> (permalink)

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If hot air rises, why is it generally colder at higher elevations?
> http://www.askamathematician.com/2013/02/q-if-hot-air-rises-why-is-it-generally-colder-at-higher-elevations/


> The short answer is that if you have a warm bubble of air it will
> rise, but as it does it’ll expand in the lower pressure environment,
> which causes it to cool.

> If you’re not familiar with the ideal gas law (compression heats,
> expanding cools), then here’s a better way to think about it.  Gases
> (which includes air) can be though of as a hell of a lot of perfectly
> bouncy rubber balls.  Each molecule is ricocheting very fast between
> other molecules and the ground.  But, like anything that moves, when
> they move upward they slow down.

   Keep Reading.


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If hot air rises, why is it generally colder at higher elevations? Sam Wormley <swormley1@gmail.com> - 2015-10-12 21:42 -0500
  Re: If hot air rises, why is it generally colder at higher elevations? jimp@specsol.spam.sux.com - 2015-10-13 03:59 +0000
    Re: If hot air rises, why is it generally colder at higher elevations? benj <none@gmail.com> - 2015-10-13 00:36 -0400
    Re: If hot air rises, why is it generally colder at higher elevations? "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-10-13 14:48 -0700
  Re: If hot air rises, why is it generally colder at higher elevations? gilber34 <fafa@invalid.com> - 2015-10-12 23:11 -0500
    Re: If hot air rises, why is it generally colder at higher elevations? benj <none@gmail.com> - 2015-10-13 00:40 -0400
      Re: If hot air rises, why is it generally colder at higher elevations? gilber34 <fafa@invalid.com> - 2015-10-13 07:37 -0500
        Re: If hot air rises, why is it generally colder at higher elevations? Poutnik <Poutnik4NNTP@gmail.com> - 2015-10-13 15:01 +0200

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