Question

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At a given temperature the rotational states of molecules are distributed according to the Boltzmann distribution. Of the hydrogen molecules in the ground state estimate the ratio of the number in the ground rotational state to the number in the first excited rotational state at 300 K. Take the interatomic distance as 1.06 Å. Estimate the wavelength of radiation emitted from adjacent vibration energy levels of NO molecule. Assume the force constant k-1,550 N m In which region of electromagnetic spectrum does the radiation fall? Carbon monoxide (CO) absorbs energy at 1153x 1,011 Hz, due to a transition between the0 and1 rotational states (i) What is the corresponding wavelength? In which part of the electro- magnetic spectrum does this lie? (ii) What is the energy (in eV)? (iii) Calculate the reduced mass μ. (C-- 12 times, and O 16 times the unified atomic mass constant.) (iv) Given that the rotational enrgyfind the interatomic distance ener r for this molecule Consider the hydrogen molecule H2 as a rigid rotor with distance of separation of H-atoms r = 1.0 A. Compute the energy of J = 2 rotational level.

Answer 1

2- T .rtu Stak wik gua nham number丁is proportional t (2tyl exp(-Eq/kr) 寸 factor (25+1) arises fontke 2- 从 ACR x 300 0