Tigerman
Contributor
If heat can not be created or destroyed, why does a owen produce heat?wedivebc:That is not actually true. The first law of thermodynamics is heat can not be created or destroyed. There is not heat generated when transferring gas from one container to another other than the heat picked up from the piping and valves between the source and the destination container. Ever notice as you tranfer from a bank it gets cooler? There is more heat from compressed air because usually ambient air has more heat energy than compressed air that has been allowed to cool off for a period of time.
ENERGY can not be created or destroyed, only change forms. HEAT energy however is most certainly created from other forms of energy. Last time I checked a log of wood lying in my -5 celcius shed wasnt very hot, but it certainly is when I use it as firewood..