Re: 70 to 25 in 48 hours, moving air, water
- To: <perennials@mallorn.com>
- Subject: Re: 70 to 25 in 48 hours, moving air, water
- From: "* <d*@kiva.net>
- Date: Thu, 12 Mar 1998 19:01:36 -0500
>Isn't this what's called sublimation/
Nope. Sublimination is when a material goes directly from a solid to a
gaseous state...like dry ice turning into gaseous carbon dioxide.
>At any rate, you intuitively know this. Take a glass of water that's
>been in the fridge and is below 40F. Take a glass of water that's been
>sitting on the counter at 70F. Put in freezer. It takes a *heck* of a
>long time to freeze the 40F water -- much longer than bringing the 70F
>down to 40F. Same goes from moving the Thanksgiving turkey into the
>fridge from the freezer -- takes *forever* to thaw.
That's heat of fusion.....the stage where water turns into ice (and ice
into water) stores up (or releases) a few calories of energy during the
process of changing between solid and liquid states of matter.
Barb in Southern Indiana Zone 5/6 <dorsett@kiva.net>
Midwest Gardener http://www.suite101.com/topics/page.cfm/430
Suite 101 http://www.suite101.com
Gardening splash page http://www.suite101.com/userfiles/79/gardening.html
A root is a flower that disdains fame.
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