Please, help me, I keep getting stuck on this and the question is due tomorrow.
Now I have the primitive function as the one in the attachment (with x for 'r', l for 'L' and r for 'R'). I don't know how to go further...
Homework Statement
Knowing that the wave function of the hydrogen atom is proportional to e-r/a0, estimate how t depends on the proton proton separation d. I need just to make a drawing of the integrand and make a reasonal approximation using my intuition (no numerical methods allowed to...
Thank you so very very much! :) Now I can finish the problem! You're great :D
Oh btw and I guess that delta E can be calculated with this total work and the TOTAL q right?
On a second thought, I don't think my edit is such a brilliant idea, because then q= n Cp delta T should be 0 too for step II and IV which can't be cause heat is neaded to melt the ice/vaporize the water.
I know I need densities of -30,0°C ice (solid), 0°C ice/water (solid/liquid), 100°C...
Or perhaps it is necessary to calculate w and E directly for the transition (solid) => (gas) with:
w = -p \Delta V = - n R \Delta T and
\Delta E = \frac{3}{2} R \Delta T (=q +w)
and q= \Delta H = \frac{5}{2} \Delta T
I need to calculate q, w, \Delta E, \Delta H and \Delta S for the process of heating a sample of ice weighing 18.02 g (1 mole) from -30.0 °C to 140.0°C at constant pressure of 1 atm.
Given are the temperature independent heat capacities (Cp) for solid, liquid and gaseous water: 37.5 J/K/mol...
Could you please explain how to resonate the double bond into the ring
in part A5 and how BH3 & H2O2 would react, because I can't find it in my literature.
To get part A2, isn't a keto-enol tautomerization a possibility?
Could you please help me with the other questions, cause I really...
Hi!
I've made the following assignments and I'll appreciate it if anybody of you can help me with them and correct me if my answer is wrong. Thanks a lot!
A) Provide reagents that could be used to effect the transformation of 'Stof A' to each of the following compounds (1-5)...
Hi Patrick!
Today in college I've checked it with my professor. He immediately confessed the word force should be replaced by potential as you suggested. So I've done a Taylor expansion on
L= E - sqrt{E^2 + U ^2}
Using U << E the Taylor series are:
L(U)= L(0) + \frac{1}{1!}...
I've checked my notes and the only thing my prof told me about this, is that he mentioned the Lennard Jones potential. It shows that at a short distance the potential is proportional to 1/r12 (molecules are close to one another and repulse each other), though at large distances it goes with...
Oh and as for:
The *minus* derivative of:
E - sqrt{E^2+ (\frac{1}{4 \pi \epsilon_0 z^3} \mu_1 \mu_2)^2}
would be
\frac{-3 \mu_1^2 \mu_2^2}{8 \pi^2 \epsilon_0^2 z^7} \frac{1}{2 sqrt{E^2 + \frac{\mu_1^2 \mu_2^2}{16 \pi^2 \epsilon_0^2 z^6}}}
assuming E is independent of z (is...
So I have
A=
\left(\begin{array}{cc}0&U\\U&2E\end{array}\right)
B=
\left(\begin{array}{cc}E&U\\U&E\end{array}\right)
(I'll use L for lambda)
Eigenvalues of A are found by using: det(A-LI)=0
\left(\begin{array}{cc}-L&U\\U&2E-L\end{array}\right) = 0
L2 - 2EL -U2 =0...
Hey!
My teacher gave me a very challenging problem on QM.
I've only had one introductiary course, but he said he wanted me to figure this problem out by using whatever resources, so now I turn to you guys ;-). The problem is the following:
London attraction forces can be thought of as...
This is what I've done. Please tell me if I've done it okay, cause I need to deliver it in 2 hours...:
V= IR, so Vin= IZ = I \sqrt{R^2 + (wl - \frac{1}{wc})^2}
Vin= IR \sqrt{1 + (\frac{wl - 1/wc}{R})^2} so
\frac{(wl - 1/wc)}{R} = + or - 1 to give sqrt(2)
\frac{wl}{R} -...