Download or read book Calculation of Equilibrium Compositions in Exchange Reactions written by Dean H. W. Carstens and published by . This book was released on 1974 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simple calculational method for deducing equilibrium mixtures in isotopic exchang reactions, in particular those involving mixed hydrogen isotope lithium hydride-hydrogen systems, is described. The method relies heavily on an approximate graphical technique. Several examples based on the Li(D,T)-DT system are discussed using assumed values of equilibrium constants for this particular system.
Download or read book Kinetics and Equilibrium in Mineral Reactions written by S.K. Saxena and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by numerous experts
Download or read book Equilibrium Constants for the Hydrogen Isotopic Self exchange Reactions in the 4 2 to 50 0 K Temperature Range written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen fusion may require a mixture of liquefied or frozen D2 and T2. The equilibrium constant of the exchange reaction describes the composition of this fuel. We have calculated the equilibrium constant K/sub DT/ for the reaction D2 + T2 = 2DT in the 4.2 to 100 K temperature range. The results agree well with previous calculations at 25, 50, and 100 K. Calculations at temperatures below 25 K have not been published previously. In the 16.7 to 33.3 K temperature range, which includes the triple point, K/sub DT/ can be represented by K = 2.995 exp( -10.82/T). The values of the analogous equilibrium constants for H2-D2 and H2-T2 are also given in the 4.2 to 50 K temperature range.
Download or read book Calculating Equilibrium Compositions of Multiconstituent Multiphase Chemical Reacting Systems written by H. F. Feldmann and published by . This book was released on 1969 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Method for Computing Chemical equilibrium Compositions of Reacting gas Mixtures by Reduction to a Single Interation Equation written by Wayne Douglas Erickson and published by . This book was released on 1966 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Equilibrium Constants for the Hydrogen Isotopic Self exchange Reactions in the 4 2 50 0 K Temperature Range written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen fusion will require a mixture of liquefied or frozen D2 and T2. The equilibrium constant of the mixture describes the composition of this fuel. We have calculated the equilibrium constant, K/sub DT/, for the reaction D2 + T2 = 2DT in the 4.2-100 K temperature range. The results agree well with previous calculations at 25, 50, and 100 K. No calculations at temperatures below 25 K have been previously published. In the 16.7 to 33.3 K temperature range, which includes the triple point, K/sub DT/ can be represented by K = 2.995 exp ( -10.82/T). The values of the analogous equilibrium constants for H2--D2 and H2--T2 are also given in the 4.2 to 50 K temperature range.
Download or read book The Computation of Chemical Equilibria written by F. van Zeggeren and published by Cambridge University Press. This book was released on 2011-02-17 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 1970 book, the authors derive the equations describing equilibria in different types of system and outline the effect of variation of the parameters of the system on the equilibrium composition by using equilibrium calculations in high temperature, high pressure processes, in rocketry and in explosives technology.
Download or read book User s Guide to PHREEQC written by David L. Parkhurst and published by . This book was released on 1995 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Analytical Investigation of Three General Methods of Calculating Chemical equilibrium Compositions written by Frank J. Zeleznik and published by . This book was released on 1960 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Brinkley, Huff, and White methods for chemical-equilibrium calculations were modified and extended in order to permit an analytical comparison. The extended forms of these methods permit condensed species as reaction products, include temperature as a variable in the iteration, and permit arbitrary estimates for the variables. It is analytically shown that the three extended methods can be placed in a form that is independent of components. In this form the Brinkley iteration is identical computationally to the White method, while the modified Huff method differs only'slightly from these two. The convergence rates of the modified Brinkley and White methods are identical; and, further, all three methods are guaranteed to converge and will ultimately converge quadratically. It is concluded that no one of the three methods offers any significant computational advantages over the other two.
Download or read book Origin and Evolution of Precambrian High grade Gneiss Terranes with Special Emphasis on the Limpopo Complex of Southern Africa written by D. D. Van Reenen and published by Geological Society of America. This book was released on 2011-01-01 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Description of Input and Examples for Phreeqc Version 3 written by David L. Parkhurst and published by Createspace Independent Publishing Platform. This book was released on 2014-07-17 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: PHREEQC version 3 is a computer program written in the C and C++ programming languages that is designed to perform a wide variety of aqueous geochemical calculations. PHREEQC implements several types of aqueous models: two ion-association aqueous models (the Lawrence Livermore National Laboratory model and WATEQ4F), a Pitzer specific-ion-interaction aqueous model, and the SIT (Specific ion Interaction Theory) aqueous model. Using any of these aqueous models, PHREEQC has capabilities for (1) speciation and saturation-index calculations; (2) batch-reaction and one-dimensional (1D) transport calculations with reversible and irreversible reactions, which include aqueous, mineral, gas, solid-solution, surface-complexation, and ion-exchange equilibria, and specified mole transfers of reactants, kinetically controlled reactions, mixing of solutions, and pressure and temperature changes; and (3) inverse modeling, which finds sets of mineral and gas mole transfers that account for differences in composition between waters within specified compositional uncertainty limits.
Download or read book User s Guide to PHREEQC written by David L. Parkhurst and published by . This book was released on 1995 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogeochemistry Fundamentals and Advances Mass Transfer and Mass Transport written by Viatcheslav V. Tikhomirov and published by John Wiley & Sons. This book was released on 2016-07-20 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water is the Earth's most precious resource. Until recent years, water was often overlooked as being overly abundant or available, but much has changed all over the world. As climate change, human encroachment on environmental areas, and deforestation become greater dangers, the study of groundwater has become more important than ever and is growing as one of the most important areas of science for the future of life on Earth. This three-volume set is the most comprehensive and up-to-date treatment of hydrogeochemistry that is available. The first volume lays the foundation of the composition, chemistry, and testing of groundwater, while volume two covers practical applications such as mass transfer and transport. Volume three, which completes the set, is an advanced study of the environmental analysis of groundwater and its implications for the future. This third volume focuses more deeply on the analysis of groundwater and the practical applications of these analyses, which are valuable to engineers and scientists in environmental science, groundwater remediation, petroleum engineering, geology, and hydrology. Whether as a textbook or a reference work, this volume is a must-have for any library on hydrogeochemistry.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flood Handbook written by Saeid Eslamian and published by CRC Press. This book was released on 2022-04-03 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: Floods are difficult to prevent but can be managed in order to reduce their environmental, social, cultural, and economic impacts. Flooding poses a serious threat to life and property, and therefore it’s very important that flood risks be taken into account during any planning process. This handbook presents different aspects of flooding in the context of a changing climate and across various geographical locations. Written by experts from around the world, it examines flooding in various climates and landscapes, taking into account environmental, ecological, hydrological, and geomorphic factors, and considers urban, agriculture, rangeland, forest, coastal, and desert areas. Features Presents the main principles and applications of the science of floods, including engineering and technology, natural science, as well as sociological implications. Examines flooding in various climates and diverse landscapes, taking into account environmental, ecological, hydrological, and geomorphic factors. Considers floods in urban, agriculture, rangeland, forest, coastal, and desert areas Covers flood control structures as well as preparedness and response methods. Written in a global context, by contributors from around the world.
Download or read book Calculation of Equilibrium Constants for Isotopic Exchange Reactions written by Jacob Bigeleisen and published by . This book was released on 1947 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Geophysics written by V.I. Ferronsky and published by Springer. This book was released on 2015-01-13 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fundamentals of methods in nuclear geophysics and their practical applications in engineering geology, hydrology, hydrogeology, agriculture and environmental science are discussed in this book. The methods and apparatus based on absorption and scattering of gamma and neutron radiation for determination of density and soil moisture in natural conditions are presented in Chapters 2, 3, and 4. The theoretical fundamentals and installations of the penetration logging techniques where gamma, gamma-gamma and neutron logging in combination with static penetration form common complexes for engineering geology and hydrogeology exploration without boring holes are described. The developed constructions and practical use penetration logging installations for applications on land and marine shelves are described in Chapters 5, 6, 7, and 8. The physical fundamentals for the use of the natural stable and radioactive isotopes for study of the global hydrological cycle are provided. The experimental data, origin and distribution of cosmogenic and radiogenic isotopes in the oceans, atmospheric moisture, surface and underground waters are presented in Chapters 9, 10, and 11. The sources and conditions of the radioactive contamination of the natural waters are discussed in Chapters 12 and 13. This book will be of interest to scientists and researchers who use nuclear geophysics methods in engineering geology, hydrology, hydrogeology and hydrogeoecology. Lecturers, students, and postgraduates in these subjects will also find it useful.
