Quote:
Originally Posted by AndyK
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 ...  |
BUT, an iceberg always consists of pure water, no salt.
- otherwise it wouldnt swim
- if it has been part of arctica/antarctica, it was fallen snow in the first place and that's pure water anyway
- it it froze in the ocean, the salt doesnt get frozen WITH the water, just the water freezes, the salt, erm.....sinnks.