Problem: The high-pressure phase diagram of ice is shown at the top of the next column. Notice that, under high pressure, ice can exist in several different solid forms.Would ice III sink or float in liquid water?

FREE Expert Solution

We have to determine if ice III would sink or float on liquid water.


Recall that substances of lower density float over substances of highest density.

  • A substance with density lower than that of water would float over it.
  • A substance with density higher than that of water would sink in it.


We have to find out if the density of ice III is lower or higher than the density of water.

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Problem Details

The high-pressure phase diagram of ice is shown at the top of the next column. Notice that, under high pressure, ice can exist in several different solid forms.

Would ice III sink or float in liquid water?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Phase Diagram concept. You can view video lessons to learn Phase Diagram. Or if you need more Phase Diagram practice, you can also practice Phase Diagram practice problems.