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Asked by Miki Mouse to Alex, Anaïs, Peter, Sarwat, Shreesha on 16 Mar 2015. This question was also asked by sir luke neeeenaaaan, bethany.storry.
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Anaïs Pujol answered on 16 Mar 2015:
Ocean can freeze, look at the Arctic !!!
Then, the salt inside ocean (3%) reduce the temperature of solidification at -1.8 C instead of zero. However, it is not the only reason, in our hemisphere, warm currant maintain the temperature of water at 8/10 C. To finish the process water-ice need a lot of energy (333 J/g) so the air is not cold enough to freeze a mass of water as big as ocean
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Shreesha Bhat answered on 16 Mar 2015:
Oceans as we know are sea water, which have a lot of salt content, hence have higher freezing point than freshwater. Moreover, oceans are huge.
Although the oceans near the arctic and antartic do freeze as the temperature is very low.
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Peter Maskell answered on 16 Mar 2015:
they can. (see the north/south pole) the salt however lowers the temperature required for the water to freeze.
Comments
Akinfenwa commented on :
have you seen the arctic yet? Prick!!
Tom commented on :
Salt prevents it from freezing very quickly. 🙂