Callen H.B - Thermodynamics And An Introduction To Thermostatistics · Problem 7.4-4

STABILITY OF THERMODYNAMIC SYSTEMS

Physics — Statistical Mechanics · isothermal-compression-heat-potential

Problem

Show that equation 7.46 can be written as

Q = U_f[P, \mu] - U_i[P, \mu]

so that

U[P, \mu]

can be interpreted as a ``potential for heat at constant

T

and

N

.''