B4 notes: Second law
Aheat engineconverts thermal energy into mechanical work.Heat is transferred from a thermal energy store at high temperature to a thermal energy sink of lower temperature. This movement enables work to be done on the surroundings in what is referred to as a heat engine.Arefrigerator or heat pump is the opposite. Work is done on the gas to transfer heat from a low temperature energy store to a high temperature store.
To access the entire contents of this site, you need to log in or subscribe to it.
Alternatively, you can request a one month free trial.