CHMA11H3 Chapter Notes -Reaction Mechanism, Rate Equation, Activated Complex
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CHMA11H3 Full Course Notes
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Rate of chemical rxn indicates how fast a rxn is time. Fast ratemore molecules react to form molecules in given period of. Can be defined as negative of change in concentration of reactant divided by change in timeits negative b/c reactant [] decrease as rxn occursbut overall rate sign should be positive change in product"s [] Remember stoichiometric coefficients if you are stating it in terms of. For most rxns, the rate depends on [] of reactantsas reactants become products, reactants" []s decreaseand rxn slows down. Where a and d are stoichiometric coefficientsa is reactantd is product. Most common way to study kinetics/ rates of rxn is through spectroscopy. Chemicals have a colour to themselves (i. e. purple for reactant i2) A spectrometer passes light through a sample & measures how. If the sample contains i2, the light absorption should decrease as time. Pressure can be monitored in which the reactants/ products are gases strongly the light is absorbed progresses.
