Lesson_26 - Chemical Kinetics Chapters 14 (Petrucci et al.)...

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Lesson 26 Chemical Kinetics Chapters 14 (Petrucci et al.)
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Lesson 26 Rates of reaction In chemical kinetics, one is concerned in describing how fast a reaction takes place Consider the reaction: [ ] [ ] [ ] t SO formation SO of Rate t O n consumptio O of Rate t SO n consumptio SO of Rate d d d d d d 3 3 2 2 2 2 = = = SO 2 O 2 SO 3 time Concentration
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Lesson 26 Rates of reaction Definition of rate of reaction , r : For a generic reaction: a A + b B c C + d D = - = - = s L mol t SO t O t SO r . d ] [ d 2 1 d ] [ d d ] [ d 2 1 3 2 2 [ ] [ ] [ ] [ ] t D d t C c t B b t A a r d d 1 d d 1 d d 1 d d 1 = = - = - =
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Lesson 26 Measuring rates of reaction The amount of H O consumed and the remaining H 2 O 2 ( aq ) → H 2 O ( l ) + ½ O 2 ( g )
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Lesson 26 Measuring rates of reaction
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Lesson 26 Rate of reaction for H 2 O 2 decomposition
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Lesson 26 Differential rate laws Rate laws relate the rate of reaction to the concentration of reactants Rate laws are generally empirical and cannot be derived
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Lesson_26 - Chemical Kinetics Chapters 14 (Petrucci et al.)...

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