| Most poetically answered by Flanders and Swann: The First Law of Thermodymamics. Heat is work and work is heat The Second Law of Thermodymamics: Heat cannot of itself pass from one body to a hotter body Heat won't pass from a cooler to a hotter You can try it if you like but you far better not-a 'Cos the cold in the cooler will get hotter as a rule-a 'Cos the hotter body's heat will pass to the cooler Heat is work and work is heat and work is heat and heat is work Heat will pass by conduction and Heat will pass by convection and Heat will pass by radiation And that's a physical law |