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Summary IB Chemistry chapter 6: KINETICS CA$7.73
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Summary IB Chemistry chapter 6: KINETICS
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  • Course
  • Chemistry
  • Institution
  • 1st Degree
  • Book
  • Pearson Baccalaureate Chemistry Higher Level 2nd Edition Print and Online Edition for the IB Diploma

Everything you need to help you with Chemistry chapter 6. These notes are perfectly summarized and organized in subtopic. Includes a compilation of information from the textbook, study guides, class notes and other IB resources. Super easy to read and a great amount of information to help you ace ...

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  • Yes
  • December 15, 2021
  • 6
  • 2020/2021
  • Summary

Subjects

  • chemistry
  • kinetics
  • chapter 6
  • ib
  • sl
  • hl
  • sl amp hl

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KINETICS

Collision theory
● Reactant particles must collide with correct orientation
● Reactant particles must collide with sufficient energy to overcome the
activation energy

Activation energy
● Minimum amount of energy needed for particles to collide in order for
a chemical reaction to occur

Rate of a reaction
● Rate of change in concentration of reactants of products per unit time
● Unit = mol . dm-3 . s-1
Change of [Reactants]
1. Fast rate → Many particles = many collision so a steep rate
2. Reaction slows down → [Reactants] is decreasing due to increasing
collisions
3. Reaction has stopped




Change of [Products]
1. Fast rate → Many particles = many collisions
2. Reaction slows down → Less [Reactants] so less collisions
3. Reactions has stopped due to no more collisions

, Ways of measuring the rate of reaction
Change in volume of gas products
● Volume of gas products/ concentration of gas products is plotted
against time
● Gas syringe is used in the experiment
Change in mass
● Does not work with hydrogen gas because it is too light
● Graph can be plotted = continuous readings

Change in concentration via titration
● Continuous data
● Samples taken from reaction at different time intervals (analyzed via
titration)

Formation of a precipitate
● Non continuous method (clock reactions)
● Observable method
● Data is obtained as an average rate (time taken for reaction to
produce x)

Change in color intensity
● Colorimeter/spectrophotometer is used to shine light in chemical
reaction
● 1 reactant/particles has to be colored
● Passing light of a specific wavelength and measuring the light
intensity + light transmission

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