Ideal Gas Tutorial

Tutorial for Experiment: Ideal Gas

EXAMPLE: How does the mean square velocity of the gaseous atoms change with temperature?

EXPERIMENT: Use the applet to determine the mean square velocity of the gaseous atoms at several different temperatures while the volume of the container is held constant.

PROCEDURE:

  1. Select "T1" from the Temp(Kelvin) pull-down menu and "V" from the Volume pull-down menu.



  2. Click the Start button to initiate the animation and allow the animation to run for 30 seconds.



  3. Click the Stop button and record the mean square velocity of the gaseous atoms and the average force exerted by the gas on a wall.



  4. Select "T2" from the Temp(Kelvin) pull-down menu and "V" from the Volume pull-down menu. Click the Start button and allow the animation to run for 30 seconds.



  5. Click the Stop button and record the mean square velocity of the gaseous atoms and the average force exerted by the gas on a wall.



  6. Select "T3" from the Temp(Kelvin) pull-down menu and "V" from the Volume pull-down menu. Click the Start button and allow the animation to run for 30 seconds.



  7. Click the Stop button and record the mean square velocity of the gaseous atoms and the average force exerted by the gas on a wall.



  8. Select "T4" from the Temp(Kelvin) pull-down menu and "V" from the Volume pull-down menu. Click the Start button and allow the animation to run for 30 seconds.



  9. Click the Stop button and record the mean square velocity of the gaseous atoms and the average force exerted by the gas on a wall.



  10. Click the "MSV vs T" button to observe a plot of the mean square velocities versus the absolute temperatures.





RESULTS and OBSERVATIONS: The mean square veloctiy of the gaseuos atoms increaes linearly with an increase in the absolute temperature T.