Interpretation:
Between the given diatomic molecules
Concept introduction:
The Born-Oppenheimer approximation describes the quantum state of the molecules. It stated that the motion of a nucleus and the motion of an electron in a molecule can be separated. The Schrödinger equation is solved by using the above mathematically expression for the given molecular wavefunction.
The Schrödinger equation is used to find the allowed energy levels for electronic transitions in the
Where,
•
•
•
Want to see the full answer?
Check out a sample textbook solutionChapter 12 Solutions
Physical Chemistry
- The frequency of vibration of a chemical bond is a function of which two (2) factors ?arrow_forwardWhat can you conclude given that the plot of ln P versus t islinear?arrow_forwardDerive an expression for the mean energy of a collection of molecules that have three energy levels at 0, ε, and 3ε with degeneracies 1, 5, and 3, respectively.arrow_forward
- Calculate the value of CP at 298 K and 1 atm pressure predicted for CH4(g) and C2H4(g) by the classical equipartition theorem. Compare the predicted results with the experimental results and calculate the percent of the measured value that arises from vibrational motions.arrow_forwardIndicate if they are true or false and give a brief explanation. - The probability of spontaneous emission depends on the population of the initial excited level - The intensity of light absorbed by a molecule increases with the energy it has.arrow_forwardBriefly describe the contribution of Walter Nernst, J. W. Richards, Max planck and G.N.Lewis in the development of the third law of thermodynamic.arrow_forward
- Briefly describe the contributions of Walter Nernst, T. W. Richards, Max Planck and G. N. Lewis in the development of the third law of thermodynamicarrow_forwardQ 1. Use the equipartition principle to estimate the value of γ = Cpm/CVm for gaseous CH3COOH. Do this calculation WITH the vibrational contribution to the energy.arrow_forwardDo you expect the constant ,1 in (9.30) describing the susceptibility of the covalent bond to be positive or negative? Why?arrow_forward
- 4. Born-Oppenheimer approximation State the Born-Oppenheimer Approximation both in English and in matharrow_forwardArrange the following energies in order of increasing magnitude: a) the typical energy of a covalent single bond; b) the mean molecular translational energy for a gas at room temperature; c) the mean rotational energy of a diatomic molecule at room temperature; d) the vibrational energy for a diatomic molecule at room temperature; e) the ionization energy of H. Justify your order.arrow_forwardIn the context of the Born-Oppenheimer approximation, write the Hamiltonian for the molecular cation H₂⁺.arrow_forward
- Physical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,