  Because of one-valued connection between the configurational entropy and the
order parameter it is possible to present the theory of the second order phase
transitions in terms of the configurational entropy. It is offered a variant of
theory, in which the Nernst theorem is obeyed. Within the framework of
heterogeneous model the phenomena of growth of level of fluctuations and their
correlations are analyzed at transition of critical point as competitions of
kinetic and relaxation processes in the conditions of proximity of two critical
points.
