Lectures in Physics has been derived from Benjamin Crowell's Light and Matter series of free introductory textbooks on physics. See the editorial for more information....

Conservation Laws

Thermodynamics

Examples

Entropy and non-Carnot engine

Index

Entropy is increased by a non-Carnot engine

The efficiency of a non-Carnot engine is less than 1 - T_L/T_H, so Q_L/Q_H > T_L/T_H and Q_L/T_L> Q_H/T_H. This means that the entropy increase in the cold reservoir is greater than the entropy decrease in the hot reservoir.

Last Update: 2006-Nov-21