Kinetics and equilibria
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Activation energy | Is the minimum amount of kinetic energy particles need to start the reaction
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| Rate of reaction | the change in concentration of a substance in unit time
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| Le Chatelier's Principle | If any factor that affects equilibrium is changed, the position of equilibrium will shift to oppose the change.
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| Catalyst | Is a substance which speeds up the rate of reaction but remains chemically unchanged. They provide an alternative route which has a lower activation energy
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| Dynamic equilibrium | occurs when forward and
backward reactions are occurring at equal rates. The
concentrations of reactants and products stays
constant and the reaction is continuous.
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| Temperature increase | If temperature is increased the equilibrium will
shift to oppose this and move in the
endothermic direction to try and reduce the
temperature by absorbing heat.
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| Temperature decrease | the equilibrium
will shift to oppose this and move in the
exothermic direction to try and increase the
temperature by giving out heat.
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| The Maxwell-Boltzmann energy distribution | shows the spread of energies that
molecules of a gas or liquid have at a particular temperature
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| Catalysts do not affect | the position of equilibrium
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| Effect of catalysts on Maxwell-boltzmann | If the activation energy is lower, more
particles will have energy > EA,so the
reaction will be faster
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Created by:
Carrie Wong ^.^
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