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Old 16 Jul 2007, 14:51   #15734
mszee
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Join Date: 28.03.2006
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Quote:
Originally Posted by AndyK View Post
Going back to the question raised about what's colder, an ice cube or an ice berg ...

It all depends. If the ice berg is pure water, then it's the same at the point of freezing zero degrees centigrade.

However. If the ice berg is made up of frozen sea water, which has an average salinity of 35 parts per thousand of salt, then at the point of freezing the iceberg is colder, since averagely saline sea water freezes at -2 degrees centigrade.

Of course the other issue is what tenperature each is stored at ... if the icecube is in a freezer which is at -10 degrees centigrade and the iceberg is at zero, then the ice cube is colder! Basically there are too many unknowns in the original question.

Tomorrow's science lesson will involve jumping on a moving train or light speed ...
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