Recent content by krootox217

Homework Statement Hi, I have the following task: We have two conformers and the difference in energy between them is aprox. 1 Kcal/mol. What is the Keq at room temperature vs. at -78°C? Homework Equations Keq=e^(deltaG/(-R*T))The Attempt at a Solution I tried to solve the problem the...

Hello, thank you for helping me. I tried to do that and obtained the following: If this is correct, I still don't see what I have to do in the next step and when I have to use a program.

Homework Statement Hello, I have the following task: [/B] Homework Equations In the task[/B] The Attempt at a Solution I looked at this task with the notes from the class, but I can't really see through. It seems that the first step is the transformation into the single decoupled...

I know what a hermitian matrix is. But here I'm not sure. I guess that the operator is the same as the complex conjugate of the operator?

Homework Statement Hi, my task is to show that the momentum operator is hermitian. I found a link, which shows how to solve the problem: http://www.colby.edu/chemistry/PChem/notes/MomentumHermitian.pdf But there are two steps that I don't understand: 1. Why does the wave function approach...

It worked, thank you :)

Ok, thanks for the answer, I found a way, where t1/2 for A yields 0.756h, which seems to make sence, at least for this reaction :)

Oh i thought that the 3 bar were at the beginning, so I converted everything in SI units and used p*V=n*R*T to get the volume. Then i converted the volume in liters, and divided the starting amount of moles to get the mol/l which I used to calculate the values

I don't think so since they gave an exact value in the solutions. And yes, I did it correctly but made the miskake when I posted it here, thank you

When I try it that way, I get 0.019M for PCl5 at the end and 0.05M for each of the resulting substances. Therefore the dissociation degree of PCl5 would be 73% since the start amount was 0.069M. Do these values make sence?

No, they don't. Therefore I assume they made a mistake, thanks for the help

Homework Statement The task is the following: If the concentration of A decreases 0.03 M in one hour, then the concentration of B should to, which means, [ B] should be 0.05 M? And if I try to calculate k, i get 14.87 l/(mol*h) For second order reactions, t1/2 sould be 1/(k*[A]0) So I get...

Ok, thanks a lot! :)

Did I understand you correctly that I should do the same as in a), but this time not with the ideal gas equation, but with the van der waals equation?

Homework Statement I have the following task: A chemical reaction 2 A(g) <-> B(g) + C(g) has an equilibrium constant defined by: ln=0.8+ 1050/T−1,3.105/T² a) What is K at 400K? Calculate ΔrG0 In a volume of 5L you get 2 moles of A and 0.5 moles of B. Reaction still proceeds at 400K. Consider...