The Gas property Game There are four basic variables that we use to describe gases. They are volume (V). pressure (P), t

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The Gas Property Game There Are Four Basic Variables That We Use To Describe Gases They Are Volume V Pressure P T 1 (49.5 KiB) Viewed 16 times

The Gas property Game There are four basic variables that we use to describe gases. They are volume (V). pressure (P), temperature (7), and number of moles (n). There are four basic gas laws that describe the way in which one variable changes in response to a change in another. Each involves holding the other two variables constant. In this activity, one of the constants, one of the controls, is the quantity of gas, n. You will investigate two of the four, known as Boyle's law and Charles' law by manipulating variables in a simulation of gas properties. The formulas for these laws are: Boyle's Law (constant temperature and moles): Charles Law (constant pressure and moles): VWT: = Valtz Follow these instructions and answer the questions in the text box or on a separate sheet of paper and upload. Here is a pdf of the instructions if you want to print them out. . Choose "Ideal . Choose the red gas atoms below the bicycle pump. Add red gas by using the pump until there is about 5 atm in the chamber. If you add too much, you can let some out at the top of the chamber by pulling the handle to the left. You can get rid of all of the gas with the eraser. You can always completely revert with the orange button. We are going to explore Boyle's Law first so set the temperature to be held constant. . • . . PIVI = PVz Question #2: Describe how the collisions of the gas particles changed when you decreased the volume. Increase the volume of the chamber as far as possible. Question #3: What is the pressure when the volume is the greatest? Revert back to the beginning with the orange button. Choose the red gas atoms below the bicycle pump. Add red gas by using the pump until there is about 5 atm in the chamber. If you add too much, you can let some out at the top of the chamber by pulling the handle to the left. You can get rid of all of the gas with the eraser. You can always completely revert with the orange button. . Now we are going to explore Charles' Law so hold pressure constant and let the volume respond to changes in temperature by choosing to hold constant . . . Decrease the volume by moving the handle on the left to the right as far as you can This is about half of the volume of the original chamber. Question #1: What is the new pressure when the volume is cut in half? is that about double? "Pressure V The temperature should be about 300K. Use the bucket to heat the gas to about 400K . Then cool the gas to about 200K. • Question #4: What happened to the volume when it was cooled from 400-200K? Revert with the orange button. • Choose the red gas atoms below the bicycle pump. Add red gas by using the pump until there is about 5 atm in the chamber. . We are going to explore Charles' Law some more so hold pressure constant and let the temperature respond to changes in volume by choosing to hold constant "Pressure IT: . The temperature should be about 300K. . . Decrease the volume by about hall. Question #5: What is the temperature when the volume has been decreased by half? Question #6: Which gas law has the temperature and moles held constant? . Question #7: Which gas law shows that volume and temperature are directly proportional when pressure and moles are held constant?