Joe McGinnis
8th period
Chemistry
Boyles law
In Boyles experiments he
observed a fixed temperature, the volume of a gas is inversely proportional
to the pressure exerted by the gas." The experiment is simple. Constant temp pressured and voulume are inversely related.
Gay Lussac's Law
States that the pressure of gas being at a constant volume is directly related to its temp in kelvin. constant volume temp and pressure and directly related
Charles Law
Charles studied the compressibility of gases nearly a century after Boyle. In
his experiments he observed "At a fixed pressure, the volume of a gas is
proportional to the temperature of the gases law. constant pressure temp and volume are directly related cold loses volume hot gets more volume.
An example of Charle's law is when we did the crushed can in class. This happened because when the tempature went doen it caused the can to decrease and become a crushed can. a real life example is a balloon filled with helium on a winter day. this happens because the temp of the helium decreases and makes the balloon shrivel up.
An example of Gay Lussac's Sac's when we did the compressed bottle with the pump the volume inside the bottle the volume inside stays the same but the pressure and temp changed directly. an example is if you expose a can to a open flame that increses the pressure the molucluses bounce of the surfaces more often which cause it to blow up.
An example of Boyles Law is when we used the surenge to compress the marshmallow. when the molecules inside of the syringe were forced together the molecules inside the marshmallow were forced together also. An example of this law is when a plane starts to go up it is going from an area of high pressure where your ears are accustomed to, to an area of low pressure.
Wednesday, November 7, 2012
Friday, August 31, 2012
Date: August 31st 2012
Names: Briar Shivers and Joe McGinnis
Matierals:
Procedure:
Step 1: Fill up a 2 liter pop bottle most of the way full with water.(leave about 1-2 inches of space inbetween the cap and the water line).
Step 2: Attach 1 lugnut to each individual pipette make sure they are small enough so they stay on the pipette. Fill the first pipette up with the most liquid then the 2nd with less than the third with even more less then the fourth with even more less than the last one with the least amount of water in it.
Step: 3 Put all pipttes into the filled bottle and seal the cap closed.
Step: 4 Squeeze the bottle near the top where the pipetts are. The different levels of water should cause time delays between pipets so that they sink one at a time and come back up in an order backwards to the order in which they sank.
Conclusion/Explanation:
The reason this works is because when you squeeze the bottle the air inside becomes commpressed because water does not compress( for it is a liquid not a gas); and when the air becomess compressed that pressure forces water to also compress the air inside the pipettes. When this happens the weight of the extra water now inside the pipettes cause them to sink. When pressure is realesed, the water is forced back out of the pipettes and they float back up to the top. This process causes the density of the pipettes to change because of more mass( the extra water), and the reason they go down at different times is because the density of each pipette is already different because of varied amounts of wwater in each pipette. the reason why things float is because those things are less dense and if it is more dense it sinks just like in the pipette activity if you put to many nuts on or to much water in that would make them sink or if you didnt put enough nuts on or enough water in it would float. To make the pipettes sink faster could be different liquids added or but more liquid in the bottle to make it easy to sink faster or put some more water in the pipette or put more nuts on the pipette. The density of the pipette is less than water so that would mean that it would float. The heart and the pumping of the blood can be a situation that could be like this activity the heart beating makes the blood go around the body.
Errors
Some of the errors or mistakes that we made were we should have cut the pipettes that would have made it easier. And we needed to put more water in the bottle that would have made it easeier to sink also.
Names: Briar Shivers and Joe McGinnis
Matierals:
- A empty 2 liter pop bottle
- 5 pipettes
- 5 lugnuts
Procedure:
Step 1: Fill up a 2 liter pop bottle most of the way full with water.(leave about 1-2 inches of space inbetween the cap and the water line).
Step 2: Attach 1 lugnut to each individual pipette make sure they are small enough so they stay on the pipette. Fill the first pipette up with the most liquid then the 2nd with less than the third with even more less then the fourth with even more less than the last one with the least amount of water in it.
Step: 3 Put all pipttes into the filled bottle and seal the cap closed.
Step: 4 Squeeze the bottle near the top where the pipetts are. The different levels of water should cause time delays between pipets so that they sink one at a time and come back up in an order backwards to the order in which they sank.
Conclusion/Explanation:
The reason this works is because when you squeeze the bottle the air inside becomes commpressed because water does not compress( for it is a liquid not a gas); and when the air becomess compressed that pressure forces water to also compress the air inside the pipettes. When this happens the weight of the extra water now inside the pipettes cause them to sink. When pressure is realesed, the water is forced back out of the pipettes and they float back up to the top. This process causes the density of the pipettes to change because of more mass( the extra water), and the reason they go down at different times is because the density of each pipette is already different because of varied amounts of wwater in each pipette. the reason why things float is because those things are less dense and if it is more dense it sinks just like in the pipette activity if you put to many nuts on or to much water in that would make them sink or if you didnt put enough nuts on or enough water in it would float. To make the pipettes sink faster could be different liquids added or but more liquid in the bottle to make it easy to sink faster or put some more water in the pipette or put more nuts on the pipette. The density of the pipette is less than water so that would mean that it would float. The heart and the pumping of the blood can be a situation that could be like this activity the heart beating makes the blood go around the body.
Errors
Some of the errors or mistakes that we made were we should have cut the pipettes that would have made it easier. And we needed to put more water in the bottle that would have made it easeier to sink also.
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