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JEE MainChemistryModeratePhysical Chemistry

Internal energy is

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The exact value of internal energy is not known as it includes
all type of energies of molecules constituting the given mass of matter

such as translational, vibrational, and rotational. The kinetic &

potential energy of the nuclei & electron within the individual

molecules and the manner in which the molecule are linked together etc.

E=Etranslational +Evibrational +Erotational E = E_{translational\ } + E_{vibrational\ } + E_{rotational\ }
Thus, we can say that internal energy is partly potential and partly

kinetic.

Source: Grass-G / CH-11 Chemistry Paper-2 1Nov New Jee main.docx

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