Heat and Mass Exchange . At 2 p.m.. H. 2" by Boris Mikhailovich Khrustalev is a fascinating and deep immersion in the world of thermodynamics and transfer processes, which will become an indispensable tool for students, graduate students and specialists in the field of engineering and materials science. In the second part of this fundamental work, the author continues to develop the topics touched upon in the first part, and offers readers a more detailed study of the processes of heat and mass exchange, their regularities and practical application. The book covers a wide range of topics, including the basic principles of heat transfer, diffusion and convection, as well as their relationship with various physical and chemical processes. Khrustalev not only explains the theoretical aspects, but also illustrates them with practical examples, which makes the material accessible and understandable. Readers will be able to see how these processes affect real life, from the design of heat exchangers to the development of new technologies in the field of energy and ecology. This book will be of interest to both senior students of technical universities and practicing engineers working in the field of heat and mass exchange. If you are passionate about physics, chemistry or engineering, then “Heat and Mass Exchange” will be a real find for you. It will also be useful for those interested in modern technologies and their application in industry, as it addresses topical issues such as energy efficiency and sustainable development. The topics raised in the book are relevant and important in light of the contemporary challenges facing humanity. In the context of global warming and the need for rational use of resources, understanding the processes of heat and mass exchange is becoming key to the development of new, more efficient technologies. Khrustalev emphasizes the importance of these processes in various industries, including chemistry, biology and ecology, which makes his work multifaceted and multidimensional. The style of Boris Mikhailovich Khrustalev is distinguished by clarity and logical presentation . He masterfully combines theory with practical examples, which allows the reader not only to assimilate the material, but also to see its application in real conditions. Khrustalev is the author of many scientific papers, and his work on heat exchange and thermodynamics is recognized in the scientific community. His approach to teaching and explaining complex concepts makes his books in demand among students and faculty. If you are looking for literature on heat transfer, thermodynamics or engineering sciences, "Heat and mass exchange. At 2 p.m.. H. 2" would be a great choice. This book will not only expand your knowledge, but will also inspire you to further explore this fascinating area. Readers interested in topics such as “heat transfer”, “mass exchange”, “thermodynamics” and “engineering sciences” will find in this work a lot of useful information and practical recommendations. Do not miss the opportunity to immerse yourself in the world of science and technology with Boris Mikhailovich Khrustalev His book is not just a textbook, but a real encyclopedia of knowledge that will help you understand complex processes and find answers to exciting questions.