Question
Fri August 31, 2012 By:

why the density of ice is less than water?

Expert Reply
Fri August 31, 2012
Water, when in solid state, has dominant hydrogen bonds existing between its molecules which are very strong. In solid state, when the water molecules come close to each other, the molecules are forced to align themselves into a very particular structure - a hexagonal lattice that is the basis for the six-sided snowflakes., Now, since Density = Mass/ Volume so due to the increased bond angles and expanded molecular structure and, this Implies greater volume, and hence,  lower density.
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