Gas Laws

Boyle's Law: The volume vs. pressure was Boyle's Law because it had a constant temperature but the pressure and volume changed and were inversely related. As you added air or pressure to the bottle the volume went down. This is because you put in air so there was less room or volume because of all the molecules that were being pumped into the bottle. when you released the pressure there was more room or volume because there was less molecules taking up space.

Gay-Lusacc's Law: The experiment with the balloon stretching inside the bottle was Gay-Lusacc's Law because it had a constant volume but the the temperature and pressure changed and were directly related. When you heated the water some of the water evaporated causing there to be a lot of molecules in the flask. That is why you had to cover the flask with a balloon really fast after you stopped heating it, so molecule wouldn't escape. Once you put cold water on the flask, the molecules slowed down causing less collisions. The cold water made the pressure on the inside of the flask less than the pressure on the outside so the pressure pushed down on the balloon to equal out the pressure and reach equilibrium. When you took the balloon off, that popping sound was due to the equaling out of pressure.

Charles's Law: The experiment with the balloon over a heater was Charle's Law because it had a constant pressure but the temperature and volume changed and were directly related. The heater was releasing constant warm air. Since the air was warm there was more molecules and more collisions. There was so many molecules that they need more room to move so they started to take up more room or more volume. Since it increased the volume but the mass stayed the same it made the density of the balloon less than the density of the air around it causing it to float to the top. When it got to the top the wasn't as much hot air so the molecules contracted and the volume decreased causing the density of the balloon to be more than the density of the air around it causing it to sink.