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What is Physics Good For?

Warming up on... Molecular Theory

This assignment is due before 9 AM, Monday, November 19^th, 2007.

Please type your last name and first initial (e.g., Rader, A):

Please type a nickname: (in case your answer gets used in class).

The following questions refer to the material you were to read in preparation to the lesson. Please write a three or four sentence response to each of the questions.

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

WarmUp questions are worth 4 points.

1.

The ideal gas law says the pressure of a gas on its container walls depends on the temperature of the gas. Please explain why this is.

2.

Estimate the number of gas molecules per cubic meter of air in your kitchen on an average day.

3.

A bottle contains air at a temperature of 300 K. Which of the following is the smallest?

The rms velocity of the oxygen molecules in the bottle.

The average velocity of the oxygen molecules in the bottle.

The most probable velocity of the oxygen molecules in the bottle.

The average speed of the oxygen molecules in the bottle.

The rms velocity of the nitrogen molecules in the bottle.

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.

This site is made possible by funding from the National Science Foundation (DUE-9981111).

This assignment is due before 9 AM, Monday, November 19th, 2007.

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This assignment is due before 9 AM, Monday, November 19^th, 2007.