Gas Laws

Gasses are different than both liquids and solids because their particles move freely in any space that the gas is given. If it is given a lot of space the gas particles are going to expand as far as they can. In the case of our explore lab we set up a funnel with a cord that was attached to a jar with a rubber stopper. This stopper ensured that no air would penetrate the gas and cause more air to be in the jar. As we added water through the funnel, the water began to take up the space that was once occupied by the spread out gas particles. As the water increased the pressure of the gas increased which eventually caused no more water to be able to enter the jar because the pressure was too high and the volume of the jar was already occupied. Solid particles have a set frame and stay close together unlike gas particles. We did this experiment at three different heights: low, medium, and high. The highest volume had the most pressure in the jar because the water was able to flow straight down into the jar. The lowest one had a pressure of 735.9mm Hg, which was low because the water had to “work” harder to get into the jar due to the excess tubing. A relationship began to form in front of my little chemist eyes. The less volume of air there was the more pressure it had because the particles were bouncing off each other more often! There was more particles in a more confined space which made the pressure rise! 

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Class Notes

Explore Lab/Data 


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