Gases
Photo Journal
In this experiment, we lit a teabag on fire. We observed that its volume stays the same when the temperature rises because the teabag retains its same structure.
In this experiment, we saw a vacuum being created inside the cup, soaking up the water and putting out the flame. We showed that as the temperature increased, so did the pressure, but the volume remains constant
We learned how to do calculations using the Ideal Gas Equation
VIDEO NOTES: We want to convert the temperature from Celsius to Kelvin so that it is not possible for us to get a negative temperature. If we do this equation in Celsius with a negative temperature, then we could get a negative result, and it is not possible to get a negative volume.
-The temperature and pressure remains constant, so it makes sense that our volume is 104.15 Liters, because it is proportional to the problem, and the PTV stick is not applicable in this situation please disregard it.
In this demonstration we watched a balloon inflate inside a vacuum chamber. As the pressure on the balloon decreased, the volume increased.
Learning Analysis
I really enjoyed this unit. I enjoyed trying to figure out exactly why reactions happen and learning about the rates and math between the pressure, temperature and volume in a reaction. I am confident with calculating using the ideal gas equation; PV=nRT. It took me a while to realize that to solve for something like the volume, you would have to change the equation to fit the need. Once this was made clear to me, I was able to solve these problems with ease.