Chapter 20

The Role of Probability in Defining Entropy

Alberto Gianinetti


As a probabilistic law, the second law of thermodynamics needs to be conceptualized in terms of the probabilities of events occurring at the microscopic level. This determines the probability of occurrence for macroscopic phenomena. For the best comprehension of this approach, it is necessary to distinguish between “probabilities”, which are subjective predictions of an expected outcome, and “frequencies”, which are objective observations of that outcome. This distinction is of help to unravel some ambiguities in the interpretation of the second law of thermodynamics.

Total Pages: 152-157 (6)

Purchase Chapter  Book Details


.Modern Applications of High Throughput R&D in Heterogeneous Catalysis
.Stochastic Lagrangian Modeling for Large Eddy Simulation of Dispersed Turbulent Two-Phase Flows.