Vibrations of a hydrogen molecule

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SUMMARY

The discussion focuses on the vibrations of a hydrogen molecule (H2) and how these vibrations change when one hydrogen atom is replaced with a deuterium atom (D2). At low temperatures, the hydrogen molecule behaves as a simple harmonic oscillator, which can be modeled as two masses connected by a spring. The key inquiry is about the factor by which the root-mean-square (rms) value of the vibrations' amplitude changes due to this substitution. Understanding the mass difference between hydrogen and deuterium is crucial for determining the impact on the rms value.

PREREQUISITES
  • Understanding of simple harmonic motion
  • Knowledge of molecular vibrations
  • Familiarity with root-mean-square deviation calculations
  • Basic principles of quantum mechanics
NEXT STEPS
  • Research the principles of simple harmonic oscillators in molecular systems
  • Study the effects of mass on vibrational frequencies in diatomic molecules
  • Learn about the quantum mechanical treatment of molecular vibrations
  • Explore the differences in physical properties between hydrogen and deuterium
USEFUL FOR

Students studying physical chemistry, molecular physics, or anyone interested in the vibrational properties of diatomic molecules.

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Homework Statement


Translated from swedish so i hope i get it right...

Observe vibrations along the axis of the bond in a hydrogen molecule (H2). For low temperatueres, by which factor does the rms value ("root-mean-square deviation") of these vibrations amplitude change if one of the hydrogen atoms is changed for a deuterium atom?

My problem is that i don't really know where to begin. So I am not asking for a solution (becasue i know you won't give me one) but a push in the right direction.
 
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At low temperatures, the hydrogen molecule will behave as a simple harmonic oscillator. Eg., 2 masses on a linear spring.
 

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