<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>A hot potato has it's electrons in a higher energetic state than a cold potato. There are still the same number of electrons as protons in each potato thus the charge of both is neutral thus there is no attraction. You would have to heat the hot one up to an energy equivalent to the first ionization energy of what ever of it's atoms had the lowest first ionization energy. (I believe this is cesium.) Then the hot potato would begin to shed electrons and an attraction would occur.What usually happens is that a rupture occurs in the top of the skin of the hot potato, and the deficit of electrons attracts a pat of solidified bovine mammary gland fat and a dollop of bacterially modified emulsified bovine fat. A few grains of sodium chloride usually finds it's way into the fissure. Then a metal fork forces bites of the potato into one's mouth. It is a common occurrence, but nothing to be alarmed over. Cs first ionization energy 375.7 kJ/mol is the lowest on record. The specific heat of Cs is 32.210  J·mol−1·K−1. In order to put 375.7 kJ into a mole of Cs it would have to be raised to a temperature of 375,700 divided by 32.210 or 11,000 degrees C. That seems awfully high and I suspect it is the energy that insures that all of the first electrons are gone. A candle flame is a plasma and it is no where near 11k deg C. Plus, if you ever got that high, the potato would be over done. <br /> Posted by billslugg</DIV></p><p>So an increase in heat would not directly mean an increase in charge. I figured since the electrons were the primary carriers of heat there would be some kind of correlation, but an increase in energy of a molecule does not mean an increase of charge. As you and vogon put it there only seems to be not a negative force, but a positive attractivness when the other potato has shed all of its electrons and has gone into the plasma state. </p><p>So until that state is reached there no noticeable change positive or negative in the charge of the electrons? </p> <div class="Discussion_UserSignature"> <div>________________________________________ <br /></div><div><ul><li><font color="#008000"><em>your move...</em></font></li></ul></div> </div>