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8.6

difference between thermal and kinetic energy

Asked by andieje in Math & Science

Hello

I always get confused about the difference between thermal and kinetic energy.

I have 2 definitions of thermal energy that I normally remember.

1) Thermal energy is the portion of energy of a moleucle that is propertional to its temperature
2) thermal energy is energy that can be transferred as heat in a disordered fashion by contact between molecules.

I think of kinetic energy as being the translational, rotational and vibrational energy of a molecule.

Kinetic energy can be transferred as heat by collisions amongmolecules. However thermal energy must include some other energy than just kinetic energy otherwise it wouldn't have a separate name would it :)

What other energy is thermal energy apart from kinetic?

thanks
 
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[+][-]10/25/09 03:34 PM, ID: 25658794Accepted Solution

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[+][-]10/25/09 03:18 PM, ID: 25658696Expert Comment

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