Boyle's Law-
States that when temperature is constant pressure and volume are inversely related; so, as pressure increases volume decreases. An example of this would be the egg being sucked out of the Erlenmeyer flask. As we increased pressure by putting more air into the flask, the volume had to decrease, so the egg moved closer to the mouth of the flask.
Charles's Law-
States that when pressure is constant temperature and volume are directly related. An example of this is the toy story balloon rising. As the temperature goes up, the volume goes up, because the rise in temperature from the heater makes the molecules move faster, and take up more space. When they take up more space the volume increases, and density is mass/volume. So as the volume goes up the density decreases, making the balloon lighter than the air around it. this causes the balloon to rise.
Gay-Lusaac's Law-
States that when volume is constant pressure and temperature are directly related. An example of this would be the bottle where we added pressure and measured the temperature. As the pressure in the bottle increased the particles started to have more collisions, increasing the average kinetic energy in each particle. That made the temperature rise.
Real Life Example-
Popping bubble wrap is an example of Boyle's Law, because temperature remains constant and pressure and volume are inversely related. As you push down on the plastic bubble you are making it take up less space, which decreases the volume. This makes the pressure go up, because the gas is exerting more force on the plastic around the bubble, causing it to pop.
http://www.stowawaystorage.ca/bigbox/packbubble.htmlfile
Monday, November 7, 2011
Sunday, November 6, 2011
Gas Laws
Boyle's law states that temperature is constant and pressure and temperature are inversely related. The most clear demonstration of this law would be the straw lab. As you decrease the volume, the pressure goes up, so when you flick the straw it pops.
Charles's Law that pressure stays constant and temperature and volume are directly related. The best example would be the can that imploded, by changing the temperature from hot to cold the volume decreased, while the pressure remained the same.
Gay-Lusac's Law states that volume is constant and temperature and pressure are directly related. The bike bump would reflect this law because as you increase or decrease the pressure, the temperature changes accordingly. This was most evident when letting the pressure out by unscrewing the cap, it got very cold inside the bottle and you could see it.
Charles's Law that pressure stays constant and temperature and volume are directly related. The best example would be the can that imploded, by changing the temperature from hot to cold the volume decreased, while the pressure remained the same.
Gay-Lusac's Law states that volume is constant and temperature and pressure are directly related. The bike bump would reflect this law because as you increase or decrease the pressure, the temperature changes accordingly. This was most evident when letting the pressure out by unscrewing the cap, it got very cold inside the bottle and you could see it.
Silent Lab
Boyle's Law states that at a constant temperature; pressure and volume directly vary. "Shrink Wrap" is an example of Boyle's law. This is true because the pressure and volume change. The temp. and the # of moles stay constant. I know that the pressure changed because the bag shrunk into the person. I know that the volume changed because the bag got rapidly smaller.
Gay Lusaac's law states that at a constant volume; pressure and temperature relate directly. The station where the thermometer is in the bottle and it is pumped with an air pump; is an example of Gay Lusaac's Law. This is true because the pressure and the temperature change. Also the # of moles and volume stay the same. I know that the pressure changed because we pumped a lot of air into the bottle. I know that the temperature changed because the thermometer changed.
Charle's Law states that at a constant pressure; volume and temperature relate diretly. The station with the heating can is an example of Charles's Law. This is true because the volume and temperature change.The pressure and # of moles stay constant. I know that the volume changes because when the can is put in the cool water the can implodes. I know that the temperature changes because the can goes from being heated up to being cooled down in cold water.
Silent Lab Reflection
Boyle's Law says that with a constant temperature, pressure and volume vary directly. Meaning that when pressure increases, volume decreases and vise versa. The best example i can think of is with the bike pump. We pumped in more air which made the syringe decrease in volume.
Charles's law say that at a constant pressure, tempeature and volume are directly related. So when temp goes down so does volume and the other way around. The imploding can is a good example of this because we heated the can with a little water in the bottom and then waited untill steam came rom the can the when placed in COLD water the VOLUME of the can DECREASED.
Gay-Lusac's law states that with a constant volume pressure and temp are directly related. a good example of this is the compressor lab. We pumped compressed air into a bottle.When the volume of the bottle increased the temp rose and when released it dropped dramatically.
Charles's law say that at a constant pressure, tempeature and volume are directly related. So when temp goes down so does volume and the other way around. The imploding can is a good example of this because we heated the can with a little water in the bottom and then waited untill steam came rom the can the when placed in COLD water the VOLUME of the can DECREASED.
Gay-Lusac's law states that with a constant volume pressure and temp are directly related. a good example of this is the compressor lab. We pumped compressed air into a bottle.When the volume of the bottle increased the temp rose and when released it dropped dramatically.
Silent Lab
Boyles Law states that at constant temperature the pressure and the volume are inversly related, therefore if one goes up the other goes down. An example of this would be station 1. When you pulled the syringe back releasing the pressure the pumpkin got bigger increasing the volume.
Charles Law states that at constant pressure the temperature and volume are directly related therefore if one goes up the other one goes up. An example of this would be the bike pump lab. While pressure stayed the same when the bottle got warmer the volume increased.
Gay-Lusaacs law states that at constant volume the pressure and temperature are directly related therefore if one goes up or down the other one goes up or down. An example of this would be sation four. When the can was taken from hot water to cold water it got crushed decreasing the volume.
A real life example of the Gas Laws would be how hot air balloons are able to blow up. When you increase the amount of heat put into the balloon the volume of the balloon increases to hold more air. This would be an example of Charles Law because pressure is constant while temperature and volume both increases.
Silent Lab
Boyle's Law has a constant temperature while pressure and volume are inversely related which means that when the volume goes down the pressure goes up. A perfect example of Boyle's Law would be the pressure lab. We had to record our data and according to it we found that the the pressure and volume were different because the bottle was completely sealed with the pump connected to it.
Charle's Law has constant pressure with temperature and volume directly related. The example of Charle's Law would be Station 4, the can lab. We put 5-10mL of water in the can then placed it on the heater until it steamed, then immediately placed it in water and as soon as it hit the water it crushed. What happened was that the temperature and volume affected the outcome for the can to crush.
Gay-Lusaac's Law has constant volume with pressure and temperature directly related. I think the blue liquid station is associated with Gay-Lusaac's Law. The more pressure we had, we had a different volume of blue liquid coming out.
Charle's Law has constant pressure with temperature and volume directly related. The example of Charle's Law would be Station 4, the can lab. We put 5-10mL of water in the can then placed it on the heater until it steamed, then immediately placed it in water and as soon as it hit the water it crushed. What happened was that the temperature and volume affected the outcome for the can to crush.
Gay-Lusaac's Law has constant volume with pressure and temperature directly related. I think the blue liquid station is associated with Gay-Lusaac's Law. The more pressure we had, we had a different volume of blue liquid coming out.
Friday, November 4, 2011
Silent lab - Gas laws
Boyle's Law
The pipit with the blue liquid was a good example of Boyles law. There was constant temperature throughout the whole experiment, but the pressure and volume were inversely related. When we would put more pressure on the pipit the volume would decrease and more blue liquid would come out of the top of the pipit. When temperature stayed constant pressure increased while volume decreased.
Charles Law
A good example for Charles law is the toy story balloon rising and falling. While the pressure stayed constant the temperature and volume directly related. When we held the balloon in front of the heater the particles inside the balloon started to expand more and make the volume of the balloon increase as well as the temperature of the balloon. But when the hot air was taken away the temperature started to decrease while the volume started to decrease as well, which made the balloon start to fall to the ground. When pressure stayed the same temperature and volume both increased, or both decreased.
Gay-Lusaac's Law
Station 4 which was the can lab was a good example for Gay-Lusaac's Law. There was constant volume in the can but the pressure and temperature were being increased by the Bunsen burner. While volume stayed constant pressure and temperature directly related. Once the can with steaming water was placed into the ice water the can expanded increasing the pressure and making the can burst. When the volume was the same, pressure and temperature both increased.
Real Life - gas law
The pipit with the blue liquid was a good example of Boyles law. There was constant temperature throughout the whole experiment, but the pressure and volume were inversely related. When we would put more pressure on the pipit the volume would decrease and more blue liquid would come out of the top of the pipit. When temperature stayed constant pressure increased while volume decreased.
Charles Law
A good example for Charles law is the toy story balloon rising and falling. While the pressure stayed constant the temperature and volume directly related. When we held the balloon in front of the heater the particles inside the balloon started to expand more and make the volume of the balloon increase as well as the temperature of the balloon. But when the hot air was taken away the temperature started to decrease while the volume started to decrease as well, which made the balloon start to fall to the ground. When pressure stayed the same temperature and volume both increased, or both decreased.
Gay-Lusaac's Law
Station 4 which was the can lab was a good example for Gay-Lusaac's Law. There was constant volume in the can but the pressure and temperature were being increased by the Bunsen burner. While volume stayed constant pressure and temperature directly related. Once the can with steaming water was placed into the ice water the can expanded increasing the pressure and making the can burst. When the volume was the same, pressure and temperature both increased.
Real Life - gas law
When i was little i loved balloons and loved to watch them float to the top of my ceiling, but one time my dad told me to squeeze it as hard as i could. I did and the balloon popped right in my hands. This is an example of Boyle's law because the temperature stayed constant while the pressure and volume were indirectly related. When i was squeezing the balloon i was actually reducing the volume inside which increased the pressure and made the balloon pop. The particles inside the balloon were so close together (like the mosh pit) that it just eventually burst after to much pressure was applied.
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