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Why u=1/2kt for translation and rotation but for vibrational the internal energy increases by kt ? why it increases by half for the translation and rotation and
why U=1/2KT FOR translation and rotation but for vibrational the internal energy increases by KT ? why it increases by half for the translation and rotation and vibrations by 1?
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Isha lohan 1![best-answer]()
Each degrees of freedom contribute 1/2 kT per atom to the internal energy. This is the law we already know. Each translational motion and each rotational motion is associated with one degree of freedom. But for vibrational motion two degrees of freedom are associated. Here, I am attaching the detailed description of the relation of energy and degrees of freedom. Go through it. Try to understand and ask if still any doubt.
Hope you understand. ask if any further doubt.