That is, to calculate the difference in entropy between any two states of a system, we find a reversible path between them, and integrate the energy supplied as heat at each stage of the path divided by the temperature at which heating occurs.
That is, to calculate the difference in entropy between any two states of a system, wefind a reversible path between them, and integrate the energy supplied as heat at eachstage of the path divided by the temperature at which heating occurs.