... the standard state (298 K, 101.3 kPa) is called the standard enthalpy In chemical thermodynamics, the standard enthalpy values of chemical elements in their stable states are all set zero, and ... of chemical thermodynamics Having had the practice of chemical technology after their graduation, however, they realize acutely the need of physical chemistry and begin studying chemical thermodynamics ... U(S,V,~), H I-l(S,p,~), F b-(T, V, ~), and G G(T, p, ~) are called the thermodynamic potentials for the characteristic variables S and V; S and p; T and V; and T and p; respectively An irreversible...
Ngày tải lên: 02/04/2014, 16:43
... affixes the adjective chemical to thermodynamics to indicate the change in emphasis and to modify the literal and original meaning of thermodynamics 1.2 OBJECTIVES OF CHEMICAL THERMODYNAMICS In ... dedicated mentor, and colleague CONTENTS PREFACE INTRODUCTION xix 1.1 Origins of Chemical Thermodynamics / 1.2 Objectives of Chemical Thermodynamics / 1.3 Limitations of Classic Thermodynamics / ... differentials and Euler’s theorem, because many concepts and derivations can be presented in a more satisfying and precise manner with their use Chemical Thermodynamics: Basic Concepts and Methods,...
Ngày tải lên: 02/04/2014, 16:43
Bài soạn Chapter 4 Chemical Quantities and Aqueous Reactions
... of 5, and it does Solution Stoichiometry • since molarity relates the moles of solute to the liters of solution, it can be used to convert between amount of reactants and/ or products in a chemical ... with 25 molecules of O2 to form 16 molecules of CO2 and 18 molecules of H2O moles of C8H18 react with 25 moles of O2 to form 16 moles of CO2 and 18 moles of H2O mol C8H18 : 25 mol O2 : 16 mol ... McGraw Hill O + H H O + O H H 11 Limiting and Excess Reactants in the Combustion of Methane CH4(g) + O2(g) → CO2(g) + H2O(g) • If we have molecules of CH4 and molecules of O2, which is the limiting...
Ngày tải lên: 28/11/2013, 01:11
Tài liệu Thermodynamics and Statistical Physics doc
... of Z .53 Thermodynamics ts dn Review of Zeroth, First, Second and Third Laws Thermodynamics Why study thermal and statistical physics ? What use is it ? The zeroth law of thermodynamics, ... of pressure and temperature at the end of it doing some work then there is no temperature change, i.e Initial temperature and pressure = T and P Final temperature and pressure = T and P 0 0 • ... of a rubber band A rubber band is a collection of long chain polymer molecules In its relaxed state the polymers are high disordered and entangled The amount of disorder is high and so the entropy...
Ngày tải lên: 20/12/2013, 19:15
Chemical bonding and molecular geometry( liên két hóa học và hình học phân tử)
... James) Chemical bonding and molecular geometry from Lewis to electron densities / R.i Gillespie, P.L.A Popelier p cm -(Topics in inorganic chemistry) Includes bibliographical references and index ... function L = - VZ p for L = au (blue) and L = 0.60 au (orange) The L = 0.60 surface shows the charge concentations corresponding to the lone pairs on the sulfur atom and torodial charge concentrations ... Oxford University Press Oxford New York Athens Auckland Bangkok Bogota Buenos Aires Calcutta Cape Town Chennai Dar es Salaam Delhi Florence Hong Kong...
Ngày tải lên: 07/02/2014, 22:00
Chemical bonding and molecular geometry( liên kết hóa học và hình học phân tử)
... James) Chemical bonding and molecular geometry from Lewis to electron densities / R.i Gillespie, P.L.A Popelier p cm -(Topics in inorganic chemistry) Includes bibliographical references and index ... function L = - VZ p for L = au (blue) and L = 0.60 au (orange) The L = 0.60 surface shows the charge concentations corresponding to the lone pairs on the sulfur atom and torodial charge concentrations ... Oxford University Press Oxford New York Athens Auckland Bangkok Bogota Buenos Aires Calcutta Cape Town Chennai Dar es Salaam Delhi Florence Hong Kong...
Ngày tải lên: 07/02/2014, 22:44
Tài liệu CONTROL OF ORGANIC COMPOUND EMISSIONS FROM CHEMICAL, COATINGS AND RUBBER PRODUCTS MANUFACTURING pdf
... synthetic resin and which is subsequently incorporated into the same batch History: Cr Register, September, 1986, No 369, eff 10−1−86; am (1), (2) (a) and b and (b), (3) (b) and (c) 4., r and recr (2) ... renum (2) (f) to be (2) (h) and am., cr (2) (f) and (g), r (3) (c) 5., Register, February, 1990, No 410, eff 3−1−90; am (1), (2) (a) (intro.) and (b), cr (1) (b), r and recr (3), Register, December, ... and which is subsequently incorporated into the same batch History: Cr Register, September, 1986, No 369, eff 10−1−86; am (1) and (3) (c) 4., r and recr (2) (e), renum (2) (f) to be (2) (h) and...
Ngày tải lên: 14/02/2014, 08:20
Tài liệu Báo cáo khoa học: Physico-chemical characterization and synthesis of neuronally active a-conotoxins docx
... the muscle-acting a-conotoxins GI and GII together with the neuronally acting a-conotoxins GIC and GID [1,5,10] and C magus venom contains the 2296 M L Loughnan and P F Alewood (Eur J Biochem 271) ... analysis and chemical synthesis of these peptides muscle-acting a-conotoxin MI and the neuronally acting a-conotoxin MII [11–13] A biological interpretation of this emerging pattern of paired ligand ... active a-conotoxins using HPLC and MS, including identification of post-translational modifications Isolation and identification Standard procedures for identification and isolation of a-conotoxins...
Ngày tải lên: 19/02/2014, 12:20
Physical-Chemical Properties and Environmental Fate for Organic Chemicals pot
... handbooks, notably Verschueren’s Handbook of Environmental Data on Organic Chemicals (1977, 1983) and Howard and co-workers’ Handbook of Environmental Fate and Exposure Data, Vol I, II, III and ... gaseous chemical, and wet and dry deposition of particle-associated chemical © 2006 by Taylor & Francis Group, LLC © 2006 by Taylor & Francis Group, LLC 24 Handbook of Physical -Chemical Properties and ... experimental data (Zwolinski and Wilhoit 1971, Boublik et al 1984, Stephenson and Malanowski 1987, and other handbooks) log PS = A – B/(t + C) where A, B and C are constants and t often has units of...
Ngày tải lên: 05/03/2014, 20:20
Statistical Thermodynamics and Stochastic Kinetics: An Introduction for Engineers doc
... Fluctuations and other ensembles Fluctuations and equivalence of different ensembles Statistical derivation of the NVT partition function Grand-canonical and isothermal-isobaric ensembles Maxima and minima ... Statistical Thermodynamics and his class notes were always a point of reference The late Ted H Davis gave me encouragement and invaluable feedback Dan Bolintineanu and Thomas Jikku read the final draft and ... macroscopic systems and processes Sound engineering practice is inseparable from understanding the first principles underlying physical phenomena and processes, and the two laws of thermodynamics form...
Ngày tải lên: 07/03/2014, 20:20
HANDBOOK ON CHEMICAL WEAPONS CONVENTION FOR INDIAN CHEMICAL INDUSTRY AND CHEMICAL TRADERS ppt
... Schedule-1 Chemicals (i.e Chemical Weapons and precursors); (ii) Schedule-2 Chemicals (i.e precursors to Chemical Weapons); and (iii) Schedule-3 Chemicals (i.e dual use chemicals) Annex on Chemicals ... IUPAC chemical name and ITC (HS) code for schedule chemicals (Page 71 of the handbook) 5.5 Identification of Scheduled / Unscheduled Chemicals Compile IUPAC name and CAS No of all chemicals handled ... Handbook on chemicals Chemicals listed by occurrence with their position in the Schedules of Chemicals; scheduled chemicals listed by Chemical Abstracts Service Registry Number and Scheduled Chemical s:...
Ngày tải lên: 14/03/2014, 19:20
Chemical speciation and extractability of zn, cu and cd in two contrasting biosolids amended clay soils
... and reactivity in biosolids-amended soils (Sterritt and Lester, 1980; McBride, 1995) Moreover, the metals tend to be associated mainly with solid soil components and exist in various physicochemical ... properties of the soils and biosolids are shown in Table and concentrations of major nutrients and heavy metals are listed in Table The fresh sludge had a dry matter content of 24.5% and was air-dried ... lÀ1 HOAc and 0.05 mol lÀ1 EDTA (adjusted to pH 7.0 with ammonia) as the extractants, and the suspensions in EDTA were shaken for only one hour before filtration Table Selected chemical and physical...
Ngày tải lên: 15/03/2014, 23:22
Effect of metal spiking on different chemical pools and chemically extractable fractions of heavy metals
... **, * and NS indicate significance at P = 0.01, 0.05 and non-significant difference between pairs, respectively 3.3 Effect of metal spiking and incubation on chemical pools Heavy metal spiking and ... in case of Ni, Cu, and Cd, into F4 fraction in case of Pb, Cu, and Cd, into F2 fraction in case of Ni, Cd, Pb, and Cu and invariably increased the F1 fraction (water soluble and exchangeable form) ... in sludge and metal-spiked incubated sludge is depicted in Fig Spiking and incubation appeared to increase the proportions of Cd and Ni in F1 and F2 fractions at the expanse of F5 and F4 fractions...
Ngày tải lên: 16/03/2014, 00:07
Báo cáo khoa học: Methylene analogues of adenosine 5¢-tetraphosphate Their chemical synthesis and recognition by human and plant mononucleoside tetraphosphatases and dinucleoside tetraphosphatases pot
... in Fig Other chemicals Unlabelled mono- and dinucleotides were from Sigma (St Louis, MO), and [3H]Ap4A (740 TBqÆmol)1) was purchased from Moravek, Biochemicals (Brea, CA) ppppRibose and ppCH2ppRibose ... n.d n.d and pCH2pppA appear to be the strongest inhibitors of both the human and plant enzymes The Ki values estimated for the human enzyme, 1.6 and 2.3 nm, respectively, were over 30- and 20-fold ... hydrolase by p4A and ppCH2ppA with that by ATP (p3A) and pCH2ppA, both compounds truncated by one phosphate (and one negative charge) relative to the nucleoside tetraphosphates Both ATP and its b,c-methylene...
Ngày tải lên: 16/03/2014, 14:20
thermodynamics and introductory statistical mechanics - linder b.
... Applications Thermodynamics of (Real) gases, condensed systems Chemical equilibrium 2.1 Homogeneous and heterogeneous systems 2.2 Chemical reactions Phase transitions and critical phenomena Thermodynamics ... BASIC CONCEPTS AND DEFINITIONS 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Systems and Surroundings / State Variables and Thermodynamic Properties / Intensive and Extensive Variables / Homogeneous and Heterogeneous ... Two chemical thermodynamics books, which discuss the fundamentals in depth, are listed below J de Heer, Phenomenological Thermodynamics, Prentice-Hall, 1986 J G Kirkwood and I Oppenheim, Chemical...
Ngày tải lên: 17/03/2014, 15:00
Interactions of Chemical Variations and Biocide Performance at Paper Machines potx
... demand (BOD), chemical oxygen demand (COD) and the amount of total organic carbon (TOC) Deposits from latexes, ash and pitch from wood are called white pitch (Sirén 1996) 3.4 Chemicals and chemical ... pH, and they interact with the process and with other chemicals Biocide usage and microbial growth both can cause chemical variations in papermaking processes Interactions of biocides and chemical ... the DLVO (Derjaguin and Landau, Verwey and Overbeek) theory (Derjaguin and Landau 1941; Verwey and Overbeek 1948) The theory explains how particles in aqueous system interact and how different...
Ngày tải lên: 18/03/2014, 02:20
chemical sensing and catalysis by one - dimensional metal - oxide nanostructures
... 12–14) Chemical and biological sensors having nanostructured metal oxides and especially metal-oxide nanowires benefit from the comprehensive understanding that exists of the physical and chemical ... SENSORS, AND CATALYSTS 177 ACKNOWLEDGMENTS We thank Drs Y Zhang, G Cheng, and Y Lilach for their crucial contribution to this work and Profs H Metiu and E McFarland for helpful discussions and for ... SENSORS, AND CATALYSTS 175 and length of the nanotubules was achieved by varying the anodization voltage and time The stoichiometry and crystallinity were improved by postannealing at high temperatures...
Ngày tải lên: 19/03/2014, 16:47
Physical-Chemical Properties and Environmental Fate for Organic Chemicals ppt
... 2446 2448 2450 2452 2453 2455 2463 2262 10.1 Handbook of Physical -Chemical Properties and Environmental Fate for Organic Chemicals LIST OF CHEMICALS AND DATA COMPILATIONS 10.1.1 10.1.1.1 ALIPHATIC ... environmental fate for organic chemicals. 2nd ed / by Donald Mackay [et al.] p cm Rev ed of: Illustrated handbook of physical -chemical properties and environmental fate for organic chemicals / Donald Mackay, ... Environmental chemistry Handbooks, manuals, etc I Mackay, Donald, 1936- II Mackay, Donald, 1936- Illustrated handbook of physical -chemical properties and environmental fate for organic chemicals TD196.O73M32...
Ngày tải lên: 22/03/2014, 14:20
Báo cáo khoa học: Total chemical synthesis and NMR characterization of the glycopeptide tx5a, a heavily post-translationally modified conotoxin, reveals that the glycan structure is a-D-Gal-(1fi3)-a-D-GalNAc pot
... trifluoroacetic acid and immediately injected onto RP-HPLC and fractions collected were collected and analyzed with ESI and MALDI-MS Chemical reduction The native and synthetic tx5a (hydrophilic and hydrophobic) ... this moiety and help us to understand this fairly unique chemical shift frequency (Fig 5) In addition, there are several weak NOEs between the N-acetyl CH3 and GalNAc H3, GalNAc H4 and Gal H3, ... residues Thr10 and Ala12 and the carbohydrate moieties of GalNAc (GN) and Gal (G) The individual amino acids Thr10, Ala12 are represented by 10T and 12A, respectively, while GNH1 and GNH3 represents...
Ngày tải lên: 23/03/2014, 13:20
Báo cáo Y học: Chemical structures and immunolocalization of glycosphingolipids isolated from Diphyllobothrium hottai adult worms and plerocercoids ppt
... contained galactose and glucose: 75.5% and 24.5% in A-1, 68.8% and 31.2% in A-2, and 70.5% and 29.5% in A-3 MALDI-TOF MS spectra (Fig 4) proved that three fractions were CMH, and each of them was ... four fractions (Fig 3), each containing galactose and glucose: 66.6% and 33.4% in P-1, 79.6% and 20.4% in P-2, 90.0% and 10.0% in P-3, and 83.5% and 16.5% in P-4 MALDI-TOF MS spectra proved that ... configuration and confirm linkage sequence of carbohydrates, A-7 and A-9 were subjected to proton NMR spectroscopy, and showed four and five anomeric protons, respectively Chemical shifts and coupling...
Ngày tải lên: 24/03/2014, 03:21