The Rate of Chemical Reactions

Descriptive correlational research was conducted to discover misconceptions on Rate of Reaction (RR) that impact on Chemical Equilibrium (CE) misconceptions. This research was conducted to 245 eleventh-grade students of High School in Gowa, South Sulawesi, Indonesia, that having been studied the RR and CE topics.

19p viarnault 25-04-2024 3 1   Download

Ebook "Titration calorimetry: From concept to application" describes the calibration of titration calorimeters (ITCs) and calculation of stoichiometry, equilibrium constants, enthalpy changes, and rate constants for reactions in solution. A framework/methodology for model development for analysis of ITC data is presented together with methods for assessing the uncertainties in determined parameters and test data sets.

60p tracanhphuonghoa1007 22-04-2024 8 2   Download

Part 2 book "Chemical engineering kinetics" includes content: Heterogeneous catalysis; kinetics of fluid solid catalytic reactions; external transport processes in hetergeneous reactions; reaction and diffusion within porous catalysis; the global rate and laboratory reactors; design of heterogeneous catalytic reactors; fluid solid noncatalytic reactions.

331p muasambanhan10 11-04-2024 4 1   Download

Ebook "Theoretical methods in condensed phase chemistry (Volume 5)" is meant to provide a window on the rapidly growing body of theoretical studies of condensed phase chemistry. A brief perusal of physical chemistry journals in the early to mid 1980’s will find a large number of theoretical papers devoted to 3-body gas phase chemical reaction dynamics.

318p coduathanh1122 27-03-2024 3 1   Download

Part 1 book "Introduction to chemical reaction engineering and kinetics" includes content: Introduction, kinetics and ideal reactor models, experimental methods in kinetics - measurement of rate of reaction, development of the rate law for a simple system, complexsystems, fundamentals of reaction rates, homogeneous reaction mechanisms and rate laws, catalysis and catalytic reactions,... and other contents.

352p muasambanhan09 16-03-2024 3 1   Download

Part 1 book "An introduction to chemical engineering kinetics and reactor design" includes content: Stoichiometric coefficints and reaction progress variables; thermodynamics of chemical reactions; basic concepts in chemical kinetics determination of the reaction rate expression; basic concepts in chemical kinetics - molecular interpretations of kinetic phenomena; chemical systems involving multiple reactions; elements of heterogeneous catalysis; liquid phase reactions; basic concepts in reactor design and ideal reactor models

325p muasambanhan06 03-02-2024 4 1   Download

Part 1 book "Fundamentals of chemical reaction engineering: includes content: The basics of reaction kinetics for chemical reaction engineering; rate constants of elementary reactions; the steady state approximation - catalysis; reactors for measuring reaction rates; heterogeneous catalysis.

200p muasambanhan06 03-02-2024 5 1   Download

Ebook "Bench scale calorimetry in chemical reaction kinetics: An alternative approach to liquid phase reaction kinetics" describes new and efficient calorimetric measurement methods, which can be used to accurately follow the chemical kinetics of liquid phase reaction systems. It describes apparatus and techniques for the precise measuring of the rate of heat liberation in discontinuous and continuous isothermal as well as non-isothermal reactions.

259p nhanphanguyet 28-01-2024 3 2   Download

Part 1 book "Safety-scale laboratory experiments for chemistry for today general, organic, and biochemistry" includes content: Measurements and significant figures; the use of chemical balances; the use of volumetric ware and the determination of density; physical and chemical changes; separations and analysis; classification of chemical reactions; analysis using decomposition reactions; gas laws; solution formation and characteristics; colligative properties of solutions; reaction rates and equilibrium;... and other contents.

283p muasambanhan03 02-01-2024 8 2   Download

Ebook Facts on file science experiments: Chemistry experiments - Part 2 includes contents: Chapter 12: endothermic and exothermic reactions, chapter 13: finding molar mass, chapter 14: chemical moles, chapter 15: heat energy, chapter 16: chloride levels, chapter 17: the rate of rusting, chapter 18: thin layer chromatography, chapter 19: levels of sugar, chapter 20: microscale percent composition.

97p haojiubujain03 09-08-2023 5 4   Download

A model of an ECE mechanism consisting of two reversible electrode reactions coupled by the kinetically controlled, second order, reversible chemical reaction is developed for the staircase cyclic voltammetry on the rotating disk electrode. The relationship between the limiting current of the second wave and the rate constant of chemical reaction is investigated. The concentration of electroinactive component of the forward reaction influences the half-wave potential of the first wave and the limiting current of the second wave.

8p lyhuyenthu 31-01-2023 10 2   Download

Adsorption kinetics is an essential part in adsorption studies. The pseudofirst-order (PFO) and pseudo-second-order (PSO) models are frequently used to model the experimental dataset of time-dependent adsorption. The differential equations (based on reaction rate and rate law) of the PFO and PSO models are similar to those of chemical reactions (i.e., first and second order-kinetic reactions).

15p visherylsandber 28-06-2022 14 3   Download

In this study, the novel tin-based catalysts (Sn(II)/PN@AC) were prepared using the phosphorus and nitrogen dual-modified activated carbon as support and SnCl2 as active compounds, as well as then evaluated in acetylene hydrochlorination. Under the reaction temperature of 180°C and an acetylene gas hourly space velocity (GHSV-C2 H2) of 30 h–1, the 15%Sn(II)/PN@AC-550 showed the initial acetylene conversion of 100% and vinyl chloride selectivity over 98.5%. Additionally, the deactivation rate of 15%Sn(II)/PN@AC-550 reached 0.47% h–1, which was lower than that of 15%Sn(II)/AC-550 (1.

12p tudichquannguyet 29-11-2021 7 1   Download

Neobenedenia girellae is one of the most pathogenic parasites affecting marine fish in captivity conditions. The use of chemicals for parasite prevention and treatment have several benefits; however, they can cause various negative side-effects. In an effort to discover cost-effective and sustainable practices, our current study was aimed at investigating the efficiency of freshwater treatments on N. girellae. A challenge test was conducted to produce infected fish which became materials for the freshwater immersion experiments.

9p chauchaungayxua12 09-07-2021 20 1   Download

Constraint-based metabolic flux analysis of knockout strategies is an efficient method to simulate the production of useful metabolites in microbes. Owing to the recent development of technologies for artificial DNA synthesis, it may become important in the near future to mathematically design minimum metabolic networks to simulate metabolite production.

9p viconnecticut2711 28-10-2020 12 1   Download

Ethanol production is also known as ethanolic fermentation in which sugars of biomaterials are converted into the ethanol and carbon hydroxide that may called as coproduct of fermentation. In general fermentation is a bio-chemical process where decomposition of biomaterials takes place. During bio-chemical reduction the sugar compounds like sucrose, fructose, glucose and lactose are converted into the ethyl ethanol and CO2 as by product of the fermentation process.

19p quenchua4 06-04-2020 15 3   Download

Imbalanced application of inorganic fertilizer generates undesirable over soil physicochemical properties to a great extent. Short term aerobic incubation experiment was implemented with soil samples (Typic Haplustert) collected from top soil horizon (0-15cm) of cabbage field in Viraliyur, Coimbatore district of Tamil Nadu. Intention of study is towards examining the pattern of changes in pH and electrical conductivity (EC) in soil added with varied levels of fertilizers (NPK) under field capacity condition. Fertilizer was applied in accordance with the treatments viz.

12p cothumenhmong3 22-02-2020 19 1   Download

The microwaves fostered the chemical reactions via homogeneous and fast heating processes; the sonic radiations from an ultrasonicator created ultra-fast cooling rates at high power or just played a role of mechanical waves at low power; laser provided energy nanoparticles from bulk plates; elevated temperature and pressure produced good environments for unique reactions. All those preparation methods are simple and inexpensive but they could produce nanoparticles with interesting properties.

6p queencongchua3 09-09-2019 16 0   Download

The results also indicated that the chemical conversion rate of hydrogen production was in direct proportion to the mass of Na2CO3, while the solid product was Na2UO4, instead of Na2U2O7. Nevertheless the thermochemical cycle used for hydrogen generation can be closed, and chemical compounds used in these processes can also be recycled. So the cycle with Na2UO4 as its first reaction product has an advantage over the proposed UTC process, attributed to the fast reaction rate and high hydrogen yield in the first reaction step.

7p minhxaminhyeu3 12-06-2019 3 0   Download

The kinetics of the reaction of crotonic anhydride with Scots pine (Pinus sylvestris) and Corsican pine (Pinus nigra) using pyridine as catalyst/solvent was investigated and activation energies for the initial reaction determined.

7p masterbarista 14-01-2019 12 1   Download