Recent content by botee

Dear friends, I've come across this questions when studying biatomic molecules. Here's my problem: You have the following two wave functions: Psi_1 = px(A) + px(B) Psi_2 = py(A) + py(B) here px(A) is the px orbital wave function of the A nucleus, px(B) of the B nucleus and so on...

Dear Pals! I have to design and implement a database as an exercising project. However, I am sick of all commercial database examples like movie database, supermarket database etc. Could you tell some examples of databases that physicists use? Best wishes, botee

Hey, I wanted to read that!

All opinions are welcome! Thank you for your interest!

Ok, finally I understand what you say Mapes. But can you give me an example of reversible engine which works with 2 reservoirs and it is not a Carnot engine?

Thanks for your replies. Ok, but if there are an infinite number of reservoirs, among them also should exist one with the highest and one with the lowest temperature. One of the books I saw this corollary is: Stephen J. Blundell: Concepts in thermal physics. It is also on wikipedia (Ok, that`s...

I don`t think so, I saw it in many books but without proof.

Thanks for your reply. You`re right, but then \frac{T_1}{T_4-T_1}=\frac{T_2}{T_3-T_2} so \frac{T_4-T_1}{T_3-T_2}=\frac{T_1}{T_2}, but T_1 and T_2 are not the highest and the lowest temperatures. Maybe I made some obvious mistakes that I can`t find at the moment :)

Sure. If 1-2 adiabatic, 2-3 isochore, 3-4 adiabatic, 4-1 izochore, so that V1=V4>V2=V3. Then the efficiency is \eta=1-\frac{Q_{}41}{Q_{}32}, because there is heat exchange only on izochores. For 1 kmole: Q41=Cv(T4-T1) Q32=Cv(T3-T2) For the 2 adiabatic processes (use these only if you...

Hey there! I have found an interesting corollary: All reversible engines have the same efficiency \etaCarnot. Well, I tried it for the Otto engine, but it didn`t work. If you have any idea, please share with me! Thanks!

Thanks for your post, I messed a lot with this problem trying to solve it in the rest-frame of earth.