The Morse potential is given by the following expression: V (x) = ED · (1 − e -ax)2
a.) At what value for x is V(x) a minimum? (First derivative might be helpful.)
b.) What is V(x) when x → ∞ ?
c.) What is V(x) when x → 0 ?
d.) What is the difference between ED and a measured dissociation energy
The Morse potential is given by the following expression: V (x) = ED · (1 −...
Draw a typical Morse potential energy surface for a diatomic molecule. Label the following i) The vertical and horizontal axes ii The equilibrium bond length. iii) The v=0, 1, 2 vibrational iv) The dissociation energy (Do) from the v-0 vibrational level 1 levels.
4. Anharmonic potential (15 points) The adjacent figure shows the experimentally determined potential energy curve of the electronic ground state of"Br2, with a few of the vibrational levels. The vibrational transitions are reasonably well described by a harmonic oscillator model, but much more accurately by including a small anharmonic correction term: En/hcVe(n 1/2) - vexe(n + 1/2)2. From fits to experimental data, the values of the constants are 325.32 cm and exe 1.08 cm .5 10 15 (a) Calculate the...
2.2) The Morse interatomic potential for a diatomic molecule is given by VM(r) D[1-e-a-1 r-ro where r is the interatomic distance. a) Sketch the potential, and indicate its attractive and repulsive region. [4 marks] b) Show that the equilibrium bond length is given by r ro. [4 marks] c) Determine the dissociation energy of the diatomic molecule. [4 marks]
For a particle of mass m, consider a Morse potential of V. V(x) cosh (Bx)' where V> 0 and 8 >0. (a) Illustrate this potential graphically as a function of x. (b) Write the WKB quantization condition: of pladě = (n+ + ) 7, n=0,1,2,3,,.... in terms of the bound state energies En and V(x). What are I'min and Imax in this case, and what is the physical meaning/interpretation of Imin and Imax ? (C) Use WKB methods to determine...
a) Find the potential V(x) associated with the wavefunction ψ(x) = Csech(ax) given that its energy eigenvalue is zero (i.e. E = 0). b) Plot V(x) and ψ(x) on the same graph.
A particle subject to a potential V (x) has the form 1/ cosh(kx). Obtain an expression for V (x) and the value of the corresponding energy level.
I know how to do A but not sure how to do B, C and D.
Thank you so much!
5. Vibration of diatomic molecule (20 points total) The adjacent figure shows the experimentally detemined potential energy curve of the electronic ground state of Br2 with a few of the vibrational levels. The vibrational transitions are reasonably well described by a harmonic-oscillator model but much more accurately by including a small anharmonic correction term: En/hc = e(n +1/2) - exe(n...
zone 1 Consider the following piecewise continuous, finite potential energy: ro; x < -a V(x)={-U, ; -a sxs a zone II U, > 0 (+ve) 10 ; x> a We consider zone III E>0: Unbound or scattering states (a) State the Time independent Schrödinger's Equation (TISE) and the expression of wave number k in each zone for the case of unbound state (b) Determine the expression of wave function u in each zone. (e) Determine the expression of probability Density...
5. (10 points) A simple function that looks like the potential well of a diatomic molecule is the Morse potential given by: U(x) = D. (1-e-Bx) (1) where, x is the displacement of the bond from its equilibrium position, and D. is the value of U(x) at large separations. D. is called the classical dissociation energy and is characterized by the depth of the potential well. We can expand U(x) in a Taylor series about x = 0 to obtain...
2) For the given equations: V(z) = { é o se} V(,0) = V $(x) + V1() + vee(r) a) Write the expression for 4A (x,t). b) What is the expectation value for (E) ? Write the expression in E.. c) Write the expression for W.(x,t) at E2 for t>t, and what is the probabilities at t2 > ti d) Write the another expression for WB(x, 0) with the same value of (E). e) Write the another expression for c(x,0)...