Multiple choice

Which of the following statements is true regarding different types of energies associated with a molecule?

  1. The molecule possesses vibrational energy which is associated with transitions of an electron from ground energy level to excited state level.

  2. When the centre of gravity does not change during to and fro motion of nuclei of the molecule, the molecule is said to posses translational energy.

  3. During the motion if the centre of gravity of the molecule changes the molecule which possesses vibrational energy.

  4. Considering an axis perpendicular to the internuclear axis and passing through the centre of gravity of the molecule, then the molecule needs electronic energy to rotate about this axis.

  5. Electronic Energy > Vibrational Energy > Rotational Energy > Translational Energy
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This answer is correct as electronic energy is greater than vibrational energy, which is greater than rotational energy, whihc is greater than translational energy. Thus, the total energy is given by: Etotal = Eelec + Evib + Erot + Etrans

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