Chemistry Help Please
Hey Basil ,
Sorry but I'm kind of having a little trouble on this section called "Kinetic Theory of Gases".
I was wondering if anyone can help me out on some problems which ask for equations. I'm confused on how to go about writing these equations. To explain it in this thread, it will be way too long so I took a quick pic of the handout so it'll be easier, thanks for any help. =)
http://www.imgur.com/gH28uhH
http://www.imgur.com/2NS0nVZ
http://www.imgur.com/RdZ0DJV
http://www.imgur.com/EztiY77
http://www.imgur.com/3kVy9FA
Thanks again for any help. My main problem is drawing the diagram and listing the equations.
May 2, 2013
9 Comments • Newest first
This is more like physics to me and this is coming from a chemistry major as well.
Hmm not sure, this is more into physics though.
This is way more physics than chemistry...
[url=http://i.imgur.com/3k9rGFp.jpg]Part 1[/url]
[url=http://i.imgur.com/89WBDqD.jpg]Part2[/url]
Okay wow that is way to long for me. I'll just try to explain it.
The idea with this series of problems is that you'll work out the pressure inside a container is caused by the molecules inside colliding with the walls.
Pressure is equal to force applied to an area, P = FA, the total pressure of the box will be 6 times the pressure on any of its walls
Collision/second, if ux = l, then there will be 1 collision/s; if ux = 2l, then there will be 2 collisions/s. By that logic, collisions/s = Ux/l
Total change in momentum = change in momentum of 1 particle during a collision * number of of collisions
UR FEKING STUPID NEWb
[quote=opmeTK]http://i.imgur.com/GBCZdtW.jpg?1 and the goofy number is an 8 btw, sorry
that is the root mean square... just gotta calculate it because I don't have a calculator on me atm.
Edit : Other than that and the molecular speed, I've learned none of this I'm pretty sure. And I'm in AP Chem... e_O[/quote]
As an AP Chemist I confirm this isn't taught in AP. However taking regular old high school physics is enough to solve these.
My guess
Second one
A. Conservation of momentum formula, fill it in. Initial momentum = momentum of molecule and wall
B. I don't remember the formula for change of momentum. It might be change of velocity of m(ux'-ux)
C. I think there was a formula of time related to change of momentum. Can't remember.
First one isn't even chemistry. It's asking you to show Pythagorean theorem in 3 dimensions using Pythagorean Theorem twice.
I would help you but unfortunately I don't know how to do this