Formulate a law that determines the direction of the processes.

The essence of the second law of thermodynamics consists in the statement of the fact that any natural spontaneous process in nature proceeds in a certain, inherent direction, and cannot be carried out in the opposite direction without the expenditure of energy.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.