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UNIT 4: GASES AND ATMOSPHERIC CHEMISTRY

Chapter 9: The Gas State

	9.2 Gas Laws
	9.3 Compressed Gases
	9.5 The Ideal Gas Law
	Chapter 9 Review

 

9.2 Gas Laws

A Water Mercury Manometer   Page (429, #11 )

From the University of Texas, this site has an applet which allows you to choose a pressure and see the effect it would have on the mercury level. Collect data on a variety of pressures and mercury levels. Can you derive the relationship between the height of the mercury and the ambient pressure?

Physics Time- Line to 1799   Page (429, #11 )

A Private website by Rachel and Philip Gibbs, this page gives a chronology of significant events in the history of physics. The period from 585 BC to 1799 can assist in creating your time line.

Measurement of Pressure With the Manometer   Page (429, #11 )

From Dwyer Instruments, this is an excellent page on the manometer, complete with diagrams, factors affecting its use and explanations. The page also describes variations on design and their uses.

Information- Physics One   Page (432, #15 )

A University of Missouri-St. Louis Physics Department page discussing one particular strategy for approaching absolute zero. An interesting idea!

Temperature and Absolute Zero   Page (432, #15 )

This is an excellent page from the University of Colorado Boulder explaining absolute zero and the closest to it anything has ever reached- a few billionths of a degree above absolute zero. It discusses why things don't get below absolute zero (energy from big bang) and also has an applet to demonstrate the relationship between temperature and speed of the particles. The page is set up as a dialogue in plain language.

9.3 Compressed Gases

Lost and Found Sound   Page (442, #5 )

An hilarious piece of historical tape from the National Public Radio Archives. The tape documents a conversation between US President Lyndon B. Johnson and US Astronaut Scott Carpenter while in a hyperbaric chamber containing helium gas. Read the story or listen to the tape online.

Inhaling Helium Can Cause More than a Funny Voice   Page (442, #5 )

Posted on Kidsource.com, this article from the American College of Emergency Physicians provides an intriguing look into the possible complications created by inhaling helium. An interesting read.

Ask a Scientist   Page (442, #5 )

From the US Department of Energy Ask a Scientist page, this is a brief but complete explanation of the cartoon voice created by inhaling helium gas.

9.5 The Ideal Gas Law

Air Quality - A Provincial Overview   Page (454, EAI )

The Weather Network provides this list of air qualities from different areas of Ontario. Scroll to the bottom of the page to find links from which you can learn more about air quality.

Air Quality Index   Page (454, EAI )

From the United States Environmental Protection Agency, this page explains what the AQI is, what 5 pollutants it includes, what the numbers translate to, what the health hazards are and how to avoid them.

Ministry of Environment: Ontario's Air Quality   Page (454, EAI )

The Ontario Ministry of the Environment Index Page on Air Quality and Pollutants. The page contains links to various government papers, reports and regulations/policy statements. It also includes a link leading to an explanation of Air Quality Index and the various locations around the province where measurements are taken.

Air Trends: Six Principal Pollutants  Page (454, EAI )

This site is part of the EPA's Air Trends Web site. Scroll through this page to learn about what the EPA believes are the six principal pollutants, and also browse through the list on the left to find out more about trends in air quality.

Air Quality Planning & Standards: Particulate Matter   Page (454, EAI)

Learn more about particulate matter in this Web site from the U.S. Environmental Protection Agency.

 

Environment Canada: Clean Air   Page (454, EAI)

The Particulate Matter section of the Environment Canada: Clean Air Web site describes some of the microscopic components of smog.

Chapter 9 Review

Noble Gases   Page (457, #22 )

Chemical Elements.com brings us this listing of the noble gases. Click on each of the gases for more information, including a short list of uses for each gas.

The Noble Gases   Page (457, #22 )

This is a page from a private website. It provides a great deal of information each of the Noble gases. Click on the name of the gas on the left to learn more about it. Take some time to explore this interesting site.