Which SI unit is equal to one Joule per second?
Joule heating current. This led Joule to reject the caloric theory (at that time the dominant theory) in favor of the mechanical theory of heat (according to which heat is another form of energy). Resistive heating was independently studied by Heinrich Lenz in 1842. The SI unit of energy was subsequently named the joule and given the symbol "J". The commonly known unit of power, the watt, is equivalent to one joule per second. Joule heating is caused by interactions between charge carriers (usually electrons) and the body of the conductor (usually atomic ions). A voltage difference between two points of a
Joule per mole Joule per mole The joule per mole (symbol: J·mole or J/mol) is an SI derived unit of energy per amount of material. Energy is measured in joules, and the amount of material is measured in moles. For example, Gibbs free energy is quantified as joules per mole. Since 1 mole = 6.02214179×10 particles (atoms, molecules, ions etc.), 1 Joule per mole is equal to 1 Joule divided by 6.02214179×10 particles, or (6.022×10^23 particles/mole), 1.66054×10 Joule per particle. This very small amount of energy is often expressed in terms of a smaller unit such as the electronvolt (eV, see below). Physical