PHet Gas Law Simulation - PhET Gas Law Simulation Name...

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Welding: Principles and Applications
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Chapter 7 / Exercise 36
Welding: Principles and Applications
Jeffus
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PhET Gas Law SimulationName: _________________________________________If the direct link does not work, use Google, and use the search terms “Phet Gas properties”. You can download the program on your home computer if you have Java, or you can run it online. Part 1:PlayPurpose: Play! See how everything works before we try to find any relationships. Procedure:1. Pump the handle once. Watch the temperature and pressure gauge. See how long it takes for the values to stabilize. Record the values in Table 1 on the next page2. Using the little person pushing on the wall, decrease the volume of the box in about half. Describe what happens to:Temperature:Pressure:3. Using the little person pushing on the wall, make the volume as small as possible and watch for at least 60 seconds. Thoroughly describe what happens over the course of the full minute. Be sure to address the following in your answer: a. What happens to the container and the little man pushing on the container? b. What happens to temperature and pressure? c. Describe the particle speeds of both the heavy and light species. 4. Hit the “Reset” button. Give the pump a push with the heavy species. Wait for the values to stabilize and record the results in table 1on the next page. Are these values the exact same as the first time you did it? __________ Why or why not? 5. There is a box in the lower right corner entitled “Gas in Pump”. Select the “light species”. You will notice that the pump turns red. Give the pump a press. Wait for the values to stabilize and record the results in table 1 on the next page. 6. In the box entitled “Heat Control”, grab the arrow and move it to add. What happens? 7. Using the “Heat Control”, grab the arrow and move it to “remove.” What happens? 8. Feel free to play with the simulator. Try the “Pause” and “Step” buttons at the bottom. Try sliding the top of the container. Take about 3-5 minutes to play with the different options. Table 1: Playing with the simulation programAfter pumping the .
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Welding: Principles and Applications
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Chapter 7 / Exercise 36
Welding: Principles and Applications
Jeffus
Expert Verified

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