Text 1100, 59 rader
Skriven 2007-06-13 12:18:17 av Roy Witt (1:397/22)
   Kommentar till text 1097 av Björn Forsström (2:203/614.61)
Ärende: Freezing
================
13 Jun 07 08:48, Björn Forsström wrote to Roy Witt:


 RW>> 12 Jun 07 17:37, Björn Forsström wrote to DAVID WILLIAMS:

 BF>>> ->> Now you can explain why the liquor didn't get as cold as the
 BF>>> beer when I ->> had in in the freezer.

 DW>>>> Maybe the beer was in metal cans, and the liquor was in glass
 DW>>>> bottles. The canned stuff would cool considerably faster.

 BF>>> That might be a part of the explanations but the beer was in 33 cl
 BF>>> cans and the liquor was in an 8 cl jar. Another probaly is that
 BF>>> liquor has a lower freezing-point than beer. It diifers 34%
 BF>>> alchohol. 95% ethyl alcohol have a freezing point at -117.3C
 BF>>> (-179.14F). Beer freeze in the freezer where it's only -18C
 BF>>> (-0.4F).

 RW>> It has to be the percentage of alcohol content that makes the
 RW>> difference.

 BF> That's what I think too but Davis seems to have a point with the
 BF> glass as well.

Well, here's what I did: I took some cola (beer and liquor may be next)
and seperated it into a shot glass and left some in the aluminum can. I
put both of them into the freezer at the same time and removed them 1/2
hour later.

Alum can      - 42 degrees F
Glass         - 54 degrees F
Cola in glass - 34 degrees F
Cola in can   - 33 degrees F

I used an Extech digital multimeter with a temp probe built into the unit.

After 5 minutes out of the freezer, the glass has stayed within a few
degrees of when it came out at 56 degrees F, however, the aluminum can has
warmed up considerably in that time to 64 degrees. Both were in a 80
degree F room.

 RW>> Beer would have far less alcohol than liquor.

 RW>> 100 proof liquor would be 50% alcohol, while eurapeon beer is
 RW>> probably around 6% alcohol.

 BF> 80 proof (40%) compared to 5.8%.

Since the rest is mostely water, we can assume that to be the difference
'felt' in temp...

                R\%/itt


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