| | Heat was a latecomer to this game. The field of [[Thermodynamics]], developed during the 19th century by such people as Carnot, Gibbs, Clausius, Clapeyron, Maxwell, Helmholtz, and Thompson (Lord Kelvin), established that, among other things, heat was a type of kinetic energy. The First Law of Thermodynamics is simply a statement of that fact. Because the connection between heat and more conventional forms of kinetic energy involves esoteric issues of statistical mechanics, thermodynamics is actually a rather advanced subject. The Second and Third laws of thermodynamics deal with these issues. | | Heat was a latecomer to this game. The field of [[Thermodynamics]], developed during the 19th century by such people as Carnot, Gibbs, Clausius, Clapeyron, Maxwell, Helmholtz, and Thompson (Lord Kelvin), established that, among other things, heat was a type of kinetic energy. The First Law of Thermodynamics is simply a statement of that fact. Because the connection between heat and more conventional forms of kinetic energy involves esoteric issues of statistical mechanics, thermodynamics is actually a rather advanced subject. The Second and Third laws of thermodynamics deal with these issues. |