ISBN-13: 9789400729988 / Angielski / Twarda / 2012 / 344 str.
ISBN-13: 9789400729988 / Angielski / Twarda / 2012 / 344 str.
The book presents an elementary introduction to thermodynamics, taught in undergraduate courses in physics, chemistry and engineering. It explains basic concepts such as: pressure, temperature, heat and work, together with the methods of measurement, extensive and intensive parameters, the concept of a state function, different thermodynamic processes and the first and second laws of thermodynamics; the third law is also mentioned in an appendix. The book also contains applications of thermodynamics to various systems at equilibrium, in particular to phase transitions, with a focus on first order phase transitions. First the phase diagram of a pure substance is explained, then an explanation of the liquid-gas transition based on the van der Waals equation of state is given. Example of phase transitions in complex fluids, that is, in liquid crystals are also mentioned. The basic liquid crystal phases: nematic, smectic and cholesteric phases are introduced. Next there is an introduction to thermodynamics of mixtures. This can be taught both on courses for undergraduate and postgraduate students. This introduction aims to explain phase equilibria mainly in two component systems. First, phase equilibria in ideal solutions are presented: osmotic pressure, Raoult s law and Henry s law, etc. Then the basic concepts relevant to real solutions are introduced, such as: excess functions, fugacity and activity, standard state and reference system. These concepts are used to explain phase equilibria in real solutions, in particular azeotropy and miscibility gap. Finally, the last chapter is devoted to chemical reactions in equilibrium systems. The main topics are: condition of chemical equilibrium, Le Chatelier principle, law of mass action, Hess s law. There is also a brief introduction to electrochemistry.