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Aluminum Can Lab

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by

Aniket Mehrotra

on 30 October 2014

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Transcript of Aluminum Can Lab

Aluminum Can Lab
When we removed the can immediately shrunk. It contracted and exhibits a change pressure. The next one at 10.1 immediately shrunk, further than Before. The last soda can had similar results.
We believe that the pressure will increase as the temperature increases. This is because that is the common relation between pressure and temperature. It is an ideal gas law that As the temperature increases, the molecules in the gas move faster. With this speed, the molecules impact and collide with each other and the container, increasing its force. This increases the pressure.
Observations
Hypothesis
Data Table And Graph
Question
How does the temperature affect the pressure of the soda can?
Materials
Hot Plate
Aluminum Can (12 oz.)
Beaker Tongs
Cool Water (5 mL)
Bin for water
Stop Watch
Thermometer
Calculator
Procedures
Using an ordinary 12 oz soda can, we wanted to experiment on how the temperature the water in the can
affects the pressure of gas inside the can. Because the higher the temperature is, the faster the gas particles
move, the pressure will incresase, too, assuming the gas particles will push against the rim of the can and
therefore increase the temperature. Since we didn't have an instrument to measure pressure, we used
qualitative observations to judge which temperature made the most impact on the pressure inside the can.
Either way, our data supported our hypothesis: the greater the temperature the greater the pressure of gas in
the can. Our results can also explain what occured during the experiment. Since we know the pressure was
increasing inside the can, the volume increased (we know this from Charles' Law). And when the temperature
decreased after being placed into the col water, the volume decreased and the can crumpled up, also known as
Charles's Law. As the water was heating on the hot plate, the molecules began to move faster and faster, the process
of vaporization of liquid to gas taking place. When we inverted the can into the water, the steam quickly recondensed, creating less volume for the particles to move around. The pressure inside the can drastically decreased because
liquids have a much lower pressure than a gas.

Conclusion
Errors: After making these conclusions, there were a few errors that could have improved our understanding of the experiement. We didn't accurately measure the pressure inside the cans, and had to use qualitative observations instead. Also, some of us weren't able to see the entire experiment being done, so we couldn't accurately sum up our data. Next time, we would like to redo the experiment using proper pressure measuring instruments.
Abhijit R.
Aniket M.
Chris R.
Derek S. C.
Masaki T.
Matthew T.
Shaheen S.
Ms. Le, Period 2
1. Rinse out cans

2. Fill each can with 5 mL of water.

3. Adjust the hot plate to 10.

4. Place the can on the hot plate.

5. Once steam begins to form on the can, use the beaker tongs and invert can into the cold water.

6. Decide the impact of the temperature on the pressure of the can with qualitative observations.

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