Chemical Kinetics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Average Rate | Change in concentration of a reactant or product divided by change in time
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| Instantaneous Rate | Rate at a particular moment
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| Initial Rate | Rate at the instant a reaction begins
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| Experimental Rate Law | The dependence of the observed rate of a reaction on the concentrations of various species
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| Rate Constant | k
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| Orders | Power of the concentration of a specie
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| Overall Reaction Order | Sum of all the orders
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| Half-life | Time it takes for the concentration of a reacting species to fall to half its initial value
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| Elementary Step | Direct collisions of atoms, ions, or molecules
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| Unimolecular | One atom elementary step
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| Bimolecular | Two atoms colliding in an elementary step
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| Termolecular | Three molecules colliding in an elementary step
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| Mechanism | A series of elementary steps that add to give the overall reaction
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| Principle of Detailed Balance | At equilibrium, the rate of every elementary step in a reaction mechanism equals the rate of its reverse
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| Intermediates | Cancelled out molecules
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| Chain Reaction | A reaction involved in three steps
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| Initiation | First step of Chain Reaction
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| Propagation | Second Step of Chain Reaction (Conversion steps)
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| Termination | Last step of Chain Reaction
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| Arrhenius Equation | ln k = ln A - Ea/RT
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| Inhibitors | Opposite effect of catalyst
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| Homogeneous | Catalyst in same phase
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| Heterogeneous | Catalyst in different phase
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Created by:
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