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why do ice floats on water?

Asked by Riya Rose 25th October 2013, 12:06 PM
Answered by Expert
Answer:
  • In case of solid ice, the hydrogen bonding gives rise to a cage like structure of water molecules.
  • Each water molecule is linked tetrahedrally to four water molecules.
  • When ice melts, the cage like structure collapses and the molecules come closer to each other.
  • Thus, for the same mass of water, volumes decreases and hence density increases.
  • Therefore, ice has lower density than water at 273 K and that is why ice floats on water.  
 
 

         In case of solid ice, the hydrogen bonding gives rise to a cage like structure of water molecules.

         Each water molecule is linked tetrahedrally to four water molecules.

         When ice melts, the cage like structure collapses and the molecules come closer to each other.

         Thus, for the same mass of water, volumes decreases and hence density increases.

         Therefore, ice has lower density than water at 273 K and that is why ice floats on water.

In case of solid ice, the hydrogen bonding gives rise to a cage like structure of water molecules.

Each water molecule is linked tetrahedrally to four water molecules.

When ice melts, the cage like structure collapses and the molecules come closer to each other.

Thus, for the same mass of water, volumes decreases and hence density increases.

Therefore, ice has lower density than water at 273 K and that is why ice floats on water.

    

Answered by Expert 25th October 2013, 12:33 PM
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