Can Crusher
We took an aluminum soda can, filled it with water, and
heated the can/water system until steam began to arise from the opening of the
can. After the steam was coming out of
the can we then took the can and turned it upside down inside a container of
chilled water. Our prediction matched
our results which were that the can rapidly imploded. We determined this was because the steam
immediately condensed and the can acted as a partial vacuum. It can be seen that when the temperature
decreases, the volume will also decrease.
Manometer
With the manometer, we determined that gas pressure can be
determined with the height increase of the water in the tube when blown
into. Based on our calculations we
determined that the weight of the column of water is proportional to the
density, volume, and effects of gravity on the water. We know that pressure is force over area and
also that force is the same thing as weight so we combined our two equations to
find that the gas pressure is proportional to the density of the water, the
height the water rose, and the effects of gravity on the water. 
Determining the
Ideal Gas Law
Pressure vs Volume
We took a syringe pressure sensor, hooked it up to logger
pro, and measured the pressure the syringe exerted on the sensor vs the volume
in the syringe. We predicted the graph
to be linear, but the result was an inversely proportional curve. 
Pressure vs Temperature
For our next part of the experiment, we took a sealed 125mL
Erlenmeyer flask and measured the pressure inside of the flask as the flask was
submerged into water where the temperature went from cold to hot. We predicted that the graph would be linear
and increase proportionally, the result was exactly what we predicted. From the graph we were able to see that the
fit equation represented that P = Po + ρgh 
Volume vs Temperature
When determining the volume vs temperature, we took a
syringe that was connected by a tube to an enclosed 25mL Erlenmeyer flask and
transferred the flask from ice water to room temperature water to hot
water. We measured the temperature with
a temperature probe that was connected to logger pro and we tracked the volume
increase with a friction-less syringe that would move up and down with the
volume increase of the volume. The
result was a linear relationship between the volume and the temperature. The volume of the system is able to change
without the pressure changing because the temperature is also changing with the
volume. 
Summarizing Boyle’s and Charles’ Laws
We started by writing out relationships for our finding in
volume vs temperature and pressure vs temperature and then proceeded with
combining the two equations by multiplication and were able to find Boyle's law. We found that Boyle's law is that
pressure is equal to some constant C divided by the volume which is what we
found earlier when doing the pressure vs volume part of the lab.
Balloon/ Marshmallow
To begin the experiment, we predicted that when a balloon
was put in a machine that would decrease the pressure around the balloon that
the balloon would expand in size and when brought back to the original pressure
that it would remain the same size as when we started. The result was that the balloon did indeed
get larger when the pressure was decreased, but that the balloon was smaller
than the original size due to some of the gas molecules escaping from the
balloon. The same experiment was
preformed on three marshmallows and we were asked to predict what would
happen. We predicted that the
marshmallows would increase in size when the pressure was decreased, but that
the marshmallow would be slightly bigger than its original size after it was
brought back to the original pressure.
The result was that the marshmallow did get bigger, but that when
brought back to original pressure, the marshmallow was smaller than original size. This is due to the air bubbles within the
marshmallow bursting when the pressure was decreased so when the marshmallow
was brought back to original pressure it shrunk due to the lack of air bubble/
molecules within the marshmallow. 
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