To compare the relationship between pressure, volume, and temperature of gases. The temp. must be at a constant.
Pressure is force divided by area which is mass x gravity over pai x radius squared.
We were supposed to have figured that the temperature was not going to be the same because of the fact that as volume decreases, the gas particles will collide more often causing more heat to arise. You then can start putting on your masses. You will have to use a total of 6 different masses. Be sure to adjust your volume after each trial so that it is the volume you started off with each time. Be sure to adjust your volume after each trial so that it is the volume you started off with each time.