Talk:Kinetic energy
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"In words this means that the kinetic energy (Ek) is equal to the integral of the dot product of the velocity (v) of a body and the infinitesimal of the body's momentum (p)."
- I think saying it "in words" ought to be something like "the amount of work done on a body to increase (or decrease) its speed".
- Yes, to decrease the speed to zero. Please do so. But I just wanted to explain the formula a bit to people new to the field. That explanation of the formula must be retained somehow, I feel. Andries
Heat is not kinetic energy
It is incorrect to say that heat is kinetic energy. If you heat a solid, then then you add energy to the Phonons. In other words the heat becomes vibrational energy. In the simplest approximations half on the vibrational energy is kinetic whereas the bother half is potential (This requires a harmonic potential).
However if you heat a system at chemical equilibrium, then you may cause a chemical reaction to take place the system. This reaction may lower the vibrational energy. However it is not correct to say that the reaction lowers the heat of the system.
In conclusion the section about heat should be deleted.