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Physics 416: WarmUp Exercises

...Phase Transitions

This assignment is due before 10 AM, Monday, April 3rd, 2000.

Please type LAST name:

Please type your LAST NAME and LAST FOUR SS# digits (eg: Smith3256):

I received no help from anyone on this assignment.

The following questions refer to the material you were to read in preparation to the lesson. Each question requires you to write a paragraph or two in response.

You may change your mind as often as you wish. When you are satisfied with your responses, click the "Submit WarmUp" button at the bottom of this page.




1.


Equation 8.5.11 is one for of the Clausius-Clapeyron equation. Consider applying this to the water/ice phase transition. Which items in the equation would be easiest to measure? How would you measure them?



2.

In Denver, the average atmospheric pressure is about 8.37 x 104 N/m2, about 0.826 of that at sea level. Please estimate the boiling point of water in Denver. Hint: Boiling occurs when the vapor pressure of a liquid equals the pressure outside the liquid. Also note that the latent heat of vaporization of water is 4.06 x 104 J/mole).



Satellite photo of Denver courtesy of USGS EROS Data Center

Below is a space for your thoughts, including general comments about today's assignment. What was hard or confusing (or cool)? What would you like to spend extra time on in class? Do you see how this subject fits in with the others we have discussed?




You may change your mind as often as you wish. When you are satisfied with your responses click the SUBMIT button.

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