Is ice heavier then water?

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Adam Spurgeon

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Is ice heavier then water?
« on: 14/12/2010 13:30:03 »
Adam Spurgeon  asked the Naked Scientists:
   
When ice freezes why doesn't it get heavier? It expands so shouldn't it displace the gas which then creates more mass making it get heavier?

What do you think?
« Last Edit: 14/12/2010 13:30:03 by _system »

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Offline Bored chemist

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Is ice heavier then water?
« Reply #1 on: 14/12/2010 19:33:19 »
What gas?
Please disregard all previous signatures.

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Offline CliffordK

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Is ice heavier then water?
« Reply #2 on: 14/12/2010 22:26:35 »
With the conservation of matter, a state change will not change the mass.

You may displace air... It is providing pressure but it is not providing a mass effect.

If anything...  if you thought of air as a fluid, then them more fluid you displaced, the more buoyant a substance would be, and thus the lower the weight (mass, of course being constant).

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Offline Chemistry4me

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Is ice heavier then water?
« Reply #3 on: 14/12/2010 23:21:47 »
At 0oC a given volume of ice weighs less than the same volume of water as it is less dense