Re: pinhole Peanut question

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From: Geoff Ruth (gruth@uclink4.berkeley.edu)
Date: Fri May 11 2001 - 11:18:03 PDT 

Message-Id: <a0501040db721dc2b2526@[128.32.86.234]>
Date: Fri, 11 May 2001 11:18:03 -0700
From: Geoff Ruth <gruth@uclink4.berkeley.edu>
Subject: Re: pinhole Peanut question

Ha! I just taught a mini lesson latent heat today. It's the heat
released or absorbed as a substance changes phase. It represents the
breaking or forming of intermolecular attractions -- ie, in H2O it
represents the H bonds between molecules forming or breaking.

I'm attaching a cool article that talks about an interesting
application of latent heat. I used it in my class today to help
students grapple with the weird fact that freezing something
_releases_ heat.

-Geoff

>Hi!
>
>I just did Paul's "Burn a Peanut" activity, and was wondering what
>Latent Heat was? And what units is it measured in? I know what
>heat of vaporization is. Are they related?
>
>Thanks,
>Jennifer Paillet
>
>
>
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