Gázok (g?zök) adsorbtiója szilárd, nem illanó adsorbensen. A budapesti m. kir. Tudomány-egyetem bölcsészeti kara elé terjesztett doktori dissertátió. Irta Dr. Polányi Mihály Polányi, Mihály (Michael) Chemistry,First edition,Physics,Science

First Hungarian edition. Frist separate edition. Original printed wrappers. 29 [3] pp. The foundational statement of Polányi s adsorption theory first published here in Hungarian and submitted as his doctoral dissertation during World War I. Polányi s dissertation, submitted to the Faculty of Philosophy of the University of Budapest, presents in Hungarian his early theoretical model for the adsorption of gases and vapours on solid, non-volatile surfaces. First published in German in February 1916 (Verhandlungen der Deutschen Physikalischen Gesellschaft, 18, pp. 55 80), the work was written and revised while Polányi was recovering from illness in a wartime hospital. He later translated it into Hungarian and submitted it as his doctoral thesis. This study laid the foundation for what would become known as the Polanyi potential theory. Rather than assuming a specific force law between gas molecules and the solid surface then an unsolved problem Polányi proposed a method to calculate how the adsorption curve (the isotherm) changes with temperature, based on thermodynamic principles. He introduced the concept of an "adsorption space," and formulated how the spatial distribution of adsorbed material varies in response to a potential field. In the conclusion (dated January 1916), he shows that, given an adsorption isotherm at one temperature, equilibrium states at other temperatures and pressures can be calculated, provided the equation of state of the adsorbed phase is known. Though supported by experimental observations, the theory was initially dismissed as incompatible with the then-dominant electrostatic models of molecular attraction. Polányi later remarked that had he not moved on to more "palatable" topics, defending this model might have ended his career. Its eventual vindication came only in the 1930s, with the advent of quantum theories of dispersion forces. The initial resistance to his work would shape Polányi s lifelong interest in the structure of scientific knowledge, leading to his major contributions in philosophy of science and epistemology. Polányi (1891 1976) began medical studies in Budapest in 1908, turning early to physical chemistry. Encouraged by a research visit to Karlsruhe and personal praise from Einstein, he pursued a scientific path despite the upheavals of the First World War. After positions at the Kaiser Wilhelm Institute in Berlin and the University of Manchester, he turned increasingly to philosophy, culminating in his influential Personal Knowledge (1958).Elected FRS in 1944, he was also the father of Nobel laureate John C. Polanyi, whose 1986 Nobel-winning research in reaction dynamics has been described as rooted in the scientific tradition established by his father. A rare record of Polányi s earliest theoretical breakthrough, and the formal origin of the potential-based theory of adsorption that continues to inform surface chemistry and materials science today; no copies recorded in RBH or in institutional holdings according to WorldCat. References: Beck, M. (2003). A kémikus Polányi indulása és a tudományfilozófus Polányi gyökerei. Polanyiana, 1 2, 49 54.; Scott, W. T. (1997). At the wheel of the world: The life and times of Michael Polanyi. The Polanyi Society Journal, 25(3), 10 24. . Ink and pencil shelfmarks and faint collection stamp to cover and title page. Minor stains to lower wrapper, light toning, clean and sound throughout. Overall in fine condition. First Hungarian edition. Frist separate edition.