PTV

PTV
-pressure
-temperature
-volume

Boyle's Law
Has constant temperature, inversely related with pressure and volume. (up, down; down, up)
I think it is the marshmallow lab, at this lab the temperature was the same because there was no physical or chemical changes being made to the temperature. Pulling on the syringe made it so the marshmallow would expand because the pressure was being decreased and the molecule were being spread out so the marshmallow had to take up that space, which made it expand. So The volume was increasing, the pressure was decreasing. Pushing on the syringe, volume was decreasing and pressure was increasing, because the molecules where getting closer and closer. When they where getting pushed together the molecules where taking place of the marshmallow which made the marshmallow shrink.

Gay- lussac's law
Has constant volume, direct relation with temperature and pressure (up, up; down, down).
I think it is the temperature lab with the air compressor. At this lab the temperature would decrease as pressure decreased. The volume stayed constant because the object stayed the same just more pressure was being added to the object. There are more molecules being added when the bottle was being pumped with air so the pressure was increasing; which meant the temperature was increasing because they where bouncing off each other which made more kinetic energy. As pressure was decreasing the temperature was decreasing as well; there were less molecules which meant less movement, and less kinetic energy being formed by the molecules moving.
80oF. 46psi
79oF. 40psi
76oF. 34psi
75oF. 30psi
75oF. 24psi
73oF. 16psi

Charles's Law
Constant pressure, direct relation with temperature and volume.
I think it is the balloon and hot air. The pressure on the balloon stays the same because no air is being added. The kinetic energy of the molecule made them spread apart and become less dense and so less dense objects float, which made the balloon rise to the ceiling. Then once the molecules got cooler the molecule became closer together and made it more dense which made the balloon sink.



Gay-Lusaac's Law-

Has constant volume, temperature and pressure are directly related.
Boiling a pot of water with a lid:
This pot of water has constant volume, and the temperature and pressure both increase. The pot is on the stove or a burner of some sort and it is getting heated. The pressure is being formed because the evaporation of the water is causing pressure to build because of the vapor being let off. the gas molecules are causing pressure. Example: like a tea pot on the stove, when the water is hot enough the pressure builds on the lid and then it starts to whistle.

Boyle's Law:

Constant temperature; pressure and volume are inversely related.
Pressure on a balloon: The temperature is constant there is no source that is making the temperature change. The pressure on the wall of the balloon goes up while the volume goes down. If someone where to step on the balloon the pressure of the balloon goes up because there is force in one place so that pushes the air molecules to the outside adding pressure to the balloon wall. The volume decreases because the molecules are getting pushed together by force from the persons foot.


Charles's Law


constant pressure; temperature and volume are directly related.
On a hot Air balloon: The balloon has constant pressure because the kinetic energy molecules are expanding and moving more so they're forcing constant pressure on the balloon its self. The volume and temperature increase because there is heat being added from the burner. The volume is increased as well, because the more molecules being added, the more fire is being exposed in the balloon. The volume of the balloon is less dense then the air around the balloon which makes the balloon float up into the air.