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Evaluated Electronic
Resources for Pitt Chemistry Instruction
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Evaluated Electronic
Resources for Pitt Chemistry Instruction
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| Gas Laws (e.g., Chapter 10 of Brown, LeMay and Bursten 9th ed) |
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Learning Objective |
To explore the relationship between pressure and volume in the ideal gas law. |
| Learning Activity | A straightforward lab titled Gas Pressure and Volume Relationships Exp. Computer Simulation – A can be found at: http://intro.chem.okstate.edu/2001ACS/MoLEGasLawManual.pdf (pages 4-7) It guides students through exercises exploring the effects of changing pressure on the volume of a gas sample and vice versa. The pdf can be printed and filled in much like a lab report. The applet involves a movable piston and adjustable scrollbars to change all of the ideal gas law variables. The applet also has further functions such as tracking a single molecule and mapping velocities of two gases under the user set conditions. A link to the applet used (http://intro.chem.okstate.edu/1314F00/Laboratory/GLP.htm) as well as instructions can be found on the first few pages of the pdf file, although little instruction is needed to use the applet. (Netscape users may have difficulties) |
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Learning Objective |
To explore the relationship between pressure and temperature in the ideal gas law. |
| Learning Activity | A straightforward lab titled Gas Pressure and Temperature Relationships Exp. Computer Simulation – B can be found at: http://intro.chem.okstate.edu/2001ACS/MoLEGasLawManual.pdf (pages 8-10) It guides students through exercises exploring the effects of changing pressure on the temperature of a gas sample. The pdf can be printed and filled in much like a lab report. The applet involves a movable piston and adjustable scrollbars to change all of the ideal gas law variables. The applet also has further functions such as tracking a single molecule and mapping velocities of two gases under the user set conditions. A link to the applet used (http://intro.chem.okstate.edu/1314F00/Laboratory/GLP.htm) as well as instructions can be found on the first few pages of the pdf file, although little instruction is needed to use the applet. (Netscape users may have difficulties) |
| Gas Laws (e.g., Chapter 10 of Brown, LeMay and Bursten 9th ed) |
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Learning Objective |
To investigate all variables of the ideal gas law and explore the relationships between variables. |
| Learning Activity | An open-ended exercise titled Gas Systems Computer Simulation, relating the variables in the ideal gas law to each other can be found at: http://intro.chem.okstate.edu/2001ACS/MoLEGasLawManual.pdf (page 11) It provides “systems” for the student to investigate using an ideal gas law applet found at http://intro.chem.okstate.edu/1314F00/Laboratory/GLP.htm. The system instructs the student to investigate particular situations but does not explicitly tell the student how to do so. For example, one system instructs the student to investigate the average number of collisions between particles as a function of pressure, volume, amount of sample or temperature. The applet is fairly self-explanatory to use. It involves a movable piston and adjustable scrollbars to change all of the variables in the ideal gas law. The applet also has further functions such as tracking a single molecule and mapping velocities of two gases under the user set conditions. A link to the applet used as well as instructions can be found on the first few pages of the pdf file, although little instruction is needed to use the applet. (Netscape users may have difficulties) |
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Learning Objective |
To explore the ideal gas law by developing experiments to prove or disprove statements about gasses. |
| Learning Activity | An open-ended exercise titled Research Statements, which allows students to explore the relationships of the variables in the ideal gas law as well as particle speed, kinetic energy and molar mass to each other can be found at: http://intro.chem.okstate.edu/2001ACS/MoLEGasLawManual.pdf (page 12) It provides statements for the student to investigate and prove true or false using an ideal gas law applet found at http://intro.chem.okstate.edu/1314F00/Laboratory/GLP.htm. The statements ask students to prove things such as the law of partial pressures, relationships between molar mass and pressure as well as particle speed or kinetic energy, and even how particles behave as they collide with each other or the walls of the container. The applet involves a movable piston and adjustable scrollbars to change all of the variables in the ideal gas law. The applet also has further functions such as tracking a single molecule and mapping velocities of two gases under the user set conditions. A link to the applet used as well as instructions can be found on the first few pages of the pdf file, although little instruction is needed to use the applet. (Netscape users may have difficulties) |
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Learning Objective |
To explore the relationship between the variables in the ideal gas law. |
| Learning Activity |
Walks students through a detailed lab titled Gas Law Simulation by Lisa Arnold. The worksheet can be downloaded at : http://faculty.sga.edu/larnold/courses/1211/GasLaw SimulationLessonPlan.doc It guides students through a lab exploring Boyle’s law, P vs. T, determining absolute zero, Dalton’s law of partial pressures and kinetic energy vs. velocity vs. temperature. A link to the applet used (http://intro.chem.okstate.edu/1314F00/Laboratory/GLP.htm is found on the first page of the lab. The lab walks students through with detailed instructions to use the applet and complete the lab. The applet involves a movable piston and adjustable scrollbars to change all of the ideal gas law variables. The applet also has further functions such as tracking a single molecule and mapping velocities of two gases under the user set conditions. (Netscape users may have difficulties) |
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Learning Objective |
To review the relationship between the variables in the ideal gas law. |
| Learning Activity |
Uses a series of movies (avi) files to visually show students how a gas is affected by temperature, molecular size, volume and concentration. These movies by Scott Sinex of Prince George’s CC can be found at (it may take quite a while to load) : http://academic.pgcc.edu/~ssinex/gases/gas_particles.htm. It asks students simple questions about the movies. It is a very basic site and is only appropriate for students to quickly explore on their own. At the end of the movie section and follow up set of questions can be found pertaining to the gas law applet from OK State. A link to the applet used (http://intro.chem.okstate.edu/1314F00/Laboratory/GLP.htm at the end of the page along with a link to a pdf file with some follow up questions. The applet involves a movable piston and adjustable scrollbars to change all of the ideal gas law variables. The applet also has further functions such as tracking a single molecule and mapping velocities of two gases under the user set conditions. (Netscape users may have difficulties) |
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This page last updated: 04/27/2004 |