> My understanding is that a device that converts heat into power would violate thermodynamics.
isn't a coal burning steam engine converting heat into power? perhaps the violation applies if requiring efficiency in the conversion?
isn't a coal burning steam engine converting heat into power? perhaps the violation applies if requiring efficiency in the conversion?
Carnot proved in 1824 that the maximum theoretical efficiency is purely a function of the hot and cold temperature (in Kelvin):
Eff = (T_hot - T_cold)/T_hot
So for instance a thermoelectric generator operating between 25 °C and 5 °C has a maximum efficiency of
Eff = (298 - 278) / 298 = 6.7%
> Eff = (298 - 278) / 298 = 6.7%
Does that mean a thermoelectric generator operating at a minimum of 0K has a maximum efficiency of
Eff = (N - 0) / N = 100%?
1600 times. Gas at room temp occupies 24 dm3/mole.