Re: help me with this



I never heard about this one.. very interesting

"Richard Schultz" <schultr@xxxxxxxxxxxxxxx> wrote in message
news:duf4h6$ofs$1@xxxxxxxxxxxxxxxxxx
In article <120m40qsgqf7p1f@xxxxxxxxxxxxxxxxxx>, Marvin
<physchem@xxxxxxxxxx> wrote:
: Ken wrote:

:> I myself teach chemistry in college. I had a question last class to
which I
:> couldn't give a sure answer. If we have a glass of water at exactly 300
K
:> and another one at exactly 290 K in a room at 295 K, which glass of
water
:> will reach 295 K first? why?

: It is a trick question. You have to consider evaporative
: cooling, so the 300 K glass wins.

It's like the question about if you insert an ice cube tray containing hot
water and one containing cold water into your freezer, why the former one
freezes first.

-----
Richard Schultz schultr@xxxxxxxxxxxxxx
Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel
Opinions expressed are mine alone, and not those of Bar-Ilan University
-----
"an optimist is a guy/ that has never had/ much experience"


.



Relevant Pages

  • Re: The Structure of Water and Homeopathy
    ... :> purest water that one can obtain will have nanomolar level impurities ... Could you PLEASE email that dumb chemist Louis Rey - ... Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel ... and not those of Bar-Ilan University ...
    (misc.health.alternative)
  • Re: help me with this
    ... If we have a glass of water at exactly 300 K ... freezes first. ... Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel ... and not those of Bar-Ilan University ...
    (sci.chem)
  • Re: help me with this
    ... If we have a glass of water at exactly 300 K:> and another one at exactly 290 K in a room at 295 K, which glass of water:> will reach 295 K first? ... Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel ... and not those of Bar-Ilan University ...
    (sci.chem)
  • Re: Acupuncture Training at University of Miami Medical School
    ... :>: burning water was from the dissociation of hydrogen and oxygen?? ... No, it was an example of how your argument that Rustum Roy, Ph.D. must ... I think that Dr. Moran knows a lot more about chemistry than you do. ... and not those of Bar-Ilan University ...
    (misc.health.alternative)
  • Re: help me with this
    ... :> water and one containing cold water into your freezer, ... so the hot water freezes first. ... and not those of Bar-Ilan University ...
    (sci.chem)