- Tutorial 1 Open Https Phet Colorado Edu Sims Html Gas Properties Latest Gas Properties En Htmle From Phet And Click 1 (74.99 KiB) Viewed 52 times
5. When you click on "+50" button in the image below, it adds 50 heavy gas particles in the container. Tas Pries 0. Lab Activity Added 00 6. Check "Width" in Panel 1. This will display the size of the gas container. When gas is inside, thermometer and pressure gauge also show the temperature and pressure of the gas inside. You can change the unit of temperature and pressure from the pull-down menu. H KID DO MOD 00-00 PHET! 0 PHET! Overview For the lab activity, you are going to investigate how the pressure of gas changes when the following three variables are changed 1. containersize (or volume) 2. number of gas particles 3. gas type (heavy, light, or mixture of half heavy and half light) You will perform the following two experiments and measure/record the pressure as you change one of the variables above: Experiment 1: fix the number of gas particles and change the container size and/or gas type Experiment 2: fix the container size and change the number of gas partides and/or gas type (You will not vary the temperature. You will fix the temperature of gas at 300K in all experiments.) You will record the gas type, container size, number of gas particles, and pressure in a tabular format (this is part of your submission for this assignment). I made a template for the table. You can use the template if you want to, or you can make your own table. Once the table is completed, you will answer how the pressure is affected by 1) the container size, 2) number of gas particles, and 3) gas type in the discussion section. Pay close attention to how the pressure changes as you change the variable. Your answer should be based on the recorded values in the table. Lab templatexlax
Lab 8 templatexfre Minimize Ele Predea Experiment Instructions A "Heavy" gas particles 1. Click on "Reload" button to clear the simulation. 2. Add 100 "Heavy" gas particles to the gas container. 3. The temperature should read 300 K in the thermometer. If not, change the temperature to 300 K using the temperature control. 4. Choose the "Temperature" radio button in Panel 1. This will make sure that the temperature stays constant. 5. Check the box, "Width", in panel 1 to display the size of the container. 6. Set the container size to 15 nm using the handle. 7. Wait till the gas particles scatter evenly in the container. 8. Take a screenshot of the simulator 9. The pressure reading of the gas fluctuates. You will take the average of five pressure readings. Follow a through d below: a. Pause the simulator by clicking the pause button and record the pressure. b. Resume the simulator by clicking the resume button c. Repeat the step a and buntil you have total of five pressure readings. d. Calculate the average of the five pressure readings. 10. Change the container size to 10 nm using the handle and repeat step 7 and 9 11. Change the container size to 5 nm using the handle and repeat step 7 and 9. B. "Light"gas particles Repeat step 1 through 11 above but add 100 "Light" gas particles in step 2, instead of 100 "Heavy" gas particles. n C. Mixture of "Heavy" and "Light" Repeat step 1 through 11 above but add 50 "Heavy" gas particles and 50 "Light" gas particles in step 2, instead of 100 "Heavy gas particles. C a 2 pressure readings gas type containers number of ga particles |1||2|3 4 5 average 100 100 200 100 100 100 40 heavy heavy eavy heavy light Fight ght heavy heavy heavy Fight light Fight mature 1 mature mixture manus misture mixture miature 15 nm 10 nm 5mm 5 fim 15 nm 10 nm 5 nm 15 m 10 nm 5 mm 15 nm 45 pm 15 nm 25 nm 15 nm 15100 15 m nm 15 nm 100 100 13 rm nm 100 100 Experiment 1: number of gas particles fixed In this experiment, you will start with "Heavy gas. You will fix the number of "Heavy" gas particles to 100 and change the container size, followed by recording the pressure. You will repeat the same process with "Light" gas particles and a mixture of 50 "Heavy" and 50 "Light" gas particles. In total, you will be completing nine rows in the table in Experiment 1. You will be also taking total of three screenshots. 200 am 300 100 200 300 100 200 200
Experiment 2: container size fixed In this experiment, you will again start with 100 "Heavy gas particles. However, you will change the number of gas particles in the container, instead of the container size. You will fix the container size to 15 nm and add extra gas particles, followed by recording the pressure. You will repeat the same process with "Light" gas particles and a mixture of 50 "Heavy" and 50 "Light" gas particles. In total, you will be completing nine rows in the table in Experiment 2. You will be also taking total of three screenshots. A. "Heavy" gas particles 1. Repeat step 1 through 9 in Experiment 1. 2. Add extra 100 Heavy gas particles to the gas container (total of 200 "Heavy gas particles and repeat step 7 and 9 in Experiment 1. 3. Add another extra 100 "Heavy gas particles to the gas container (total of 300 Heavy gas particles) and repeat step 7 and 9 in Experiment 1. B. "Light" gas particles 1. Repeat step 1 through 9 in Experiment 1 but add 100 Light" gas partides in step 2, instead of 100 "Heavy" as particles. 2. Add extra 100 Light" gas particles to the gas container (total of 200 "Light" gas particles) and repeat step 7 and 9 in Experiment 1. 3. Add another extra 100 "Light" gas particles to the gas container (total of 300 Light" gas particles) and repeat step 7 and 9 in Experiment 1. C. Mixture of "Heavy" and "Light" 1. Repeat step 1 through 9 in Experiment 1 but add 50 "Heavy gas particles and 50 "Light" gas particles in step 2, instead of 100 "Heavy gas partides 2. Add extra 50 "Heavy" and 50 "Light" gas particles to the gas container (total of 200 "Heavey" and "Light" gas particles) and repeat step7 and 9 in Experiment 1. 3. Add another extra 50 "Heavy" and 50 "Light" gas partides to the gas container (total of 300 "Heavey" and "Light" gas particles) and repeat step 7 and 9 in Experiment 1. Discussion Questions Answer the following discussion questions based on the values in the table you completed. 1. What relation does the pressure and the container size have? What law best describes this relation? 2. What relation does the pressure and the number of gas particles? Explain the reason behind the relation. 3. In Experiment 1 and 2, the gas type is also changed. Comparing the pressure values from different gas types in Experiment 1 and 2, what effect does changing the gas type have on the pressure?