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   2. I have some questions about water...

      
-  James Choe
Posted on 04/20/02 02:51 AM
      
Why does the temperature remain constant as a pure substance undergoes a phase change, such as liquid to gas?

When camping at high elevations, why shouldn't one cook food in an OPEN container?

Why does the evaporation rate of a liquid increase when the liquid is heated?

Why is steam at 100 degrees Celcius MORE DANGEROUS than liquid water at 100 degrees Celcius, even though both are at the same temperature?

Why does it take more energy to vaporize than to melt? Or, WHY is the heat of vaporization MORE than the heat of fusion?

What would happen if you were to remove the radiator cap from your car at a high elevation especially when you have been driving for hours?

Why is water a polar substance?

How does hydrogen bonding explain why water has a high heat of vaporization AND a high boiling point?

Differentiate, with words and drawings, the arrangement of the molecules in liquid water from ice.

Why does ice float? Explain how the phenomenon is important to LIFE. Provid examples.

What causes the bulge on the top of an ice cube when ice if first formed in an ice-cube tray?

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