The summary increment of an entropy in open systems in which proceed opposite processes

The entropy is the important thermodynamic function in help which we can obtain "goodness" of the both right-way and left-way cycles. The concept of the efficiency of the ideal cycles mentioned above is often used in technique. This paper is connected with the summary increment of the entropy obtained for the mutually opposite processes, for example in open systems solid body -its gaseous neighbourhood. The mutually opposite processes are defined as the processes proceeding in the some temperature ranges but in the opposite directions fig.2. It is proved that the summary increments of an entropy are for a cooling higher than in case of a heating, additionally their difference growth with the growth of a temperature range. It is introduced the concept of the relative increment of en entropy for the mutually opposite processes, which could have the significance for a industry.