Gas Laws - Edited Version

Gas Laws that we talked about in class on Wednesday:
Two things remained constant in each lab that we did.
PTV = number of moles stays the same.
Boyles Law - Constant temp. If pressure goes up volume goes down. Pressure and volume are inversely related.
Charles Law - Charlies angles -- way to remember it. Constant pressure. Temp and Volume are directly related. If one goes up the other goes up. If one goes down the other goes down.
Gay-Lusaacs - Volume is constant. Temp goes up, then pressure goes up. Temp and pressure are directly related.
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Station 3: Station 3 was the balloon one, where you kept it next to the heater. When you were at that lab your job was to try to get it to the ceiling. I think that this station was Charles Law. I believe that it was Charles' Law because his law has constant pressure. And temperature and volume are directly related. And the balloon had really hot air on it because of the heater, and the temperature is staying the same because the heater isn't changing temperature. So neither is the balloon. And i think the balloon became less dense, so that's why it started rising to the ceiling. Also,


Station 6: Station 6 was the egg one. This station is where you put the egg at the top of the flask. Then you set the flask in the cold water, then the egg slowly slipped through down to the bottom. Then to get it back up you had to tip the flask upside down, then blow through the top to get it back to the top. Then the last step was to set it in almost boiling water and then it slipped back through the top of the flask, then you could grab it out. I think that this lab was Boyle's Law. I think lab 6 was Boyles law because the egg sank to the bottom while in cold water and that shows his law because his law is if pressure goes up, volume goes down. Also, when we switched the flask into colder water the temp dropped, and the pressure from that pulled the egg down.


Station 2: Station 2 was the marshmallow and syringe lab. This station is where you had to put the marshmallow into the syringe, and pull it back and forth and observe what happens. I think that lab represents Gay-Lusaacs Law. I think this station represents his law because, temperature and pressure are directly related in his law. And in the lab the temperature stayed the same, and the pressure changed each time you pulled the syringe back or released it. And the more i pulled the syringe the marshmallow expanded and got bigger. And of course, when i released it got smaller and went back to its normal size. When i pulled back really slow, you could see how it was big then how it got smaller and smaller the more you released.

For my first picture i put a basketball thats losing its air. It represents Charles Law, and station 3. This picture came fromo google images. The ACTUAL site this picture came off of is: Bildungblog.com. The URL of it is: http://bildungblog.blogspot.com/2010/04/george-bushs-reputation-is-about-as.html

Second picture i put was of a bunch of crushed cans. This picture represents Boyles Law. I chose this picture because it relates to the lab we did and a real life example because sometimes when people are finished with their pop can, they might just crush it just for the heck of it like we did during the lab. And i think a lot of people actually do this in real life. This image came from google, but the actual site is this ---> URL: http://cans.planetark.org/images/public/image-341-al-cans-close-up.jpg

My third picture i put up was of a marshmallow in a syringe. Again, like our lab. But in real life this is actually a good way of showing how Gay-Lusaacs Law works. Obviously i don't just randomly put a marshmallow in a syringe... mainly because I've never really thought of doing that until we started doing these labs in chemistry. After knowing Gay-Lusaacs Law, i think this procedure represents it well. The picture i got was from Google. The actual site it came from was called Little Austinite. And the URL is: