Warmup 27: First Law of Thermodynamics

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The first three questions refer to the material you were to read in preparation for the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle. Questions 4 is your opportunity to suggest what we should emphasize today and how.

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


1.

The First Law of Thermodynamics is read "Delta U = Q - W." Explain what each of these terms means. Be sure to explain the minus sign.





2.

Estimate the work done in compressing one cubic meter of air by 5% (start at room temperature and pressure).




3.

Explain how it is possible to compress a sample of gas to half its original volume without changing its pressure.





4. Below is a space for your thoughts, including general comments about today's assignment (what seemed impossible, what reading didn't make sense, what we should spend class time on, what was "cool", etc.):




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

I received no help from anyone on this assignment.