Gas Properties Simulation
Introduction: In this simulation, you will explore the relationship of volume, temperature, and
pressure in a gas. You will also discover how concentration and temperature affect the rate of
...
Gas Properties Simulation
Introduction: In this simulation, you will explore the relationship of volume, temperature, and
pressure in a gas. You will also discover how concentration and temperature affect the rate of
diffusion of gases.
1. Follow the link on Canvas to open the “Gas Properties” Simulation.
2. Click the “Ideal” tab.
Part 1: Gas Properties – Temperature, Pressure and Volume
3. In this part of the lab, you will explore how gases behave when you change the temperature
and volume of a system.
4. Look at the different parts of the simulation. Notice the Pressure Gauge, the “Heat/Cool”
Bucket, the thermometer and the pump.
5. Click on the drop-down box above the thermometer and change the temperature units from
K to C.
7. Click and drag the handle on the tire pump one time. What happened in the simulation when
you did this?
When we dragged the tire pump one time, many molecules were injected into the box.
8. Now that there is matter in the box, there will also be a temperature and a pressure. Look at
the pressure gauge and the thermometer. Record the temperature and pressure below.
Temperature _____27C_______ Pressure _______6 atm_________
9. Use the “Heat/Cold” bucket to raise the temperature in the box. Click and hold the slider over
the “Heat” for 10-20 seconds. What happened to the pressure in the box when you raised the
temperature? Record the pressure once it stabilizes.
Pressure _____31.6 atm______
The pressure in the box dramatically increased as we increased the temperature. The
increase in the pressure was linear with the temperature, and the increase was steady. Since
there was more heat and therefore kinetic energy added to the molecules, the pressure went
up.
10. Look the box that contains the gas particles. Use the handle to make the box about half as
big. What happened to the pressure of the gas when you decreased the volume of the box?
Record the pressure once it stabilizes.
Pressure ____62.5 atm______ What happened?
When we decreased the volume of the box by half, the pressure roughly doubled. The
smaller volume in the box meant there was less room for the molecules to move around, so
they bumped into each other and the walls more often, creating more pressure
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