The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
The branch of chemistry, which deals with the study of reaction rates and their mechanisms, called chemical kinetics.
Thermodynamics tells only about the feasibility of a reaction whereas chemical kinetics tells about the rate of a reaction.
For example, thermodynamic data indicate that diamond shall convert to graphite but in reality the conversion rate is so slow that the change is not perceptible at all.
lecture slide on:
Gibbs free energy and Nernst Equation, Faradaic Processes and Factors Affecting Rates of Electrode Reactions, Potentials and Thermodynamics of Cells, Kinetics of Electrode Reactions, Kinetic controlled reactions,Essentials of Electrode Reactions,BUTLER-VOLMER MODEL FOR THE ONE-STEP, ONE-ELECTRON PROCESS,Current-overpotential curves for the system, Mass Transfer by Migration And Diffusion,MASS-TRANSFER-CONTROLLED REACTIONS,
The branch of chemistry, which deals with the study of reaction rates and their mechanisms, called chemical kinetics.
Thermodynamics tells only about the feasibility of a reaction whereas chemical kinetics tells about the rate of a reaction.
For example, thermodynamic data indicate that diamond shall convert to graphite but in reality the conversion rate is so slow that the change is not perceptible at all.
lecture slide on:
Gibbs free energy and Nernst Equation, Faradaic Processes and Factors Affecting Rates of Electrode Reactions, Potentials and Thermodynamics of Cells, Kinetics of Electrode Reactions, Kinetic controlled reactions,Essentials of Electrode Reactions,BUTLER-VOLMER MODEL FOR THE ONE-STEP, ONE-ELECTRON PROCESS,Current-overpotential curves for the system, Mass Transfer by Migration And Diffusion,MASS-TRANSFER-CONTROLLED REACTIONS,
[ Related blog post: http://www.wewwchemistry.com/2013/08/graphs-showing-effect-of-changing-conditions-on-equilibrium ] This file was updated on 15 Aug 2013. Minor changes were made to Slides 12 and 15. More substantial changes were made to Slides 26 to 45, primarily to modify the concentration-time graphs so that these were consistent with those I used in my detailed explanation on the effect of changing conditions on an equilibrium system.
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This is a summary of Chemical Equilibria, prepared according to the Singapore-Cambridge GCE A Level 9647 H2 Chemistry syllabus. It covers the differences between reversible and irreversible reactions, and explains the equilibrium state. Factors affecting equilibrium system, as applied to the Haber process, are also included.
The fundamentals of chemical equilibrium including Le Chatier's Principle and solved problems for heterogeneous and homogeneous equilibrium.
**More good stuff available at:
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and
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Before, Change, After (BCA) Tables for StoichiometryGary Abud Jr
The BCA Table method of performing stoichiometry calculations that is a cognitive approach that does not rely on algorithms, but rather it engages proportional reasoning skills.
Summary of Content Changes to A Level H2 Chemistrywewwchemistry
[ www.wewwchemistry.com ]
This mind map is a summary of content changes made to the Advanced Level Chemistry syllabus jointly offered by the Singapore Examinations and Assessment Board (SEAB) and Cambridge International Examinations (CIE). It also compares the new Syllabus 9729 with the outgoing Syllabus 9647.
[ Related blog post: http://www.wewwchemistry.com/2014/06/chemistry-of-chromium ]
These slides briefly describe the chemistry of chromium within the scope of the Singapore-Cambridge GCE A Level 9647 H2 Chemistry syllabus. Topics include the unusual electronic configuration of chromium, the various oxidation states of chromium and the reactions of common chromium compounds like chromium(III) chloride, chromium(III) nitrate, chromium(III) hydroxide,potassium chromate(VI) and potassium dichromate(VI).
Reactions Involving Alkanes, Alkenes and Areneswewwchemistry
[ Visit http://www.wewwchemistry.com ] This is a summary of reactions involving hydrocarbons, prepared according to the Singapore-Cambridge GCE A Level 9647 H2 Chemistry syllabus. Free-radical substitution mechanism of alkanes, electrophilic addition of alkenes and electrophilic (aromatic) substitution of arenes are covered. A brief discussion on the aromaticity of the benzene ring, and examples of activating and deactivating substituent groups are also included.
Effect of Concentration Changes on Cell Potentialwewwchemistry
[ Visit http://www.wewwchemistry.com ] This example uses the Nernst equation to illustrate how changes in reactant or product concentration (effected by dilution) affect cell potentials.
Hybridisation of Carbon Atomic Orbitalswewwchemistry
[ Visit http://www.wewwchemistry.com ] This set of Powerpoint slides introduces students to the basic concepts of Hybridisation Theory as applied to the atomic orbitals of carbon. sp3 hybridisation as in methane, sp2 hybridisation as in ethene, and sp hybridisation as in ethyne, are illustrated.
[ Visit http://www.wewwchemistry.com ] This is a summary presentation of the introductory topics in Organic Chemistry, prepared according to the Singapore-Cambridge GCE A Level 9647 H2 Chemistry syllabus.
[ Visit http://www.wewwchemistry.com ] This example shows how the pH of a buffer may be calculated. An acidic buffer containing ethanoic acid and ethanoate ions is used. Two methods are shown: the first requires the construction of the ICE table, while the second involves direct substitution of given data into the Henderson-Hasselbalch equation.
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2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
