The minimum amount of energy particles need to have if a collision between them is to result in the breaking of bonds
Activation Energy
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A substance that speeds up a chemical reaction but remains chemically unchanged at the end of the reaction. It works by finding an alternate route by which the reaction can take place therefore lowering the activation energy
Catalyst
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A technique that measures the concentration of a colored solution by measuring the specific wavelength of light absorbed by the solution
Colorimetry
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A reaction is______ with respect to that particular species if the rate of reaction is directly proportional to the concentration of that species
First Order
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The time taken for the concentration of a reactant to reduce by half and is independent of concentration for a first order reactant
Half Life
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A species formed in one step of a multi-step reaction that is used up in a subsequent step and is not seen as either a reactant or product of the overall reaction
Intermediate
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Chemical ______or reaction______is the study of rates of reactions and factors affecting rates
Kinetics
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The power to which a concentration is raised in the rate equation. Used on its own , the phase usually relates to the overall order of a reaction
Order
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The sum of the powers to which the individual concentrations have been raised in a rate equation
Overall Order
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The constant of proportionality in the rate equation, it is given the symbol k , that links the rate of reaction with the concentration of the reactantsraised to the powers of their orders in the rate equation . It increases with rising temperature
Rate Constant
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In a multistage reaction ,this is the slowest step and determines the overall rate . Only species involved in or before the rate determining step will appear in the rate equation
Rate Determining step
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An equation that relates the concentrations of substances involved in a reaction to the rate of reaction. It is determined experimentally and not by a balanced symbol eqaution
Rate Equation
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The rate at which reactants are consumed or products are formed in a reaction with units mol dm^3 s^-1
Rate of reaction
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The series of steps in a chemical reaction that make up an overall reaction
Reaction Mechanism
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A reaction is _____ with respect to a particular species if the rate of reaction is proportional to the concentration of that species sqaured
Second Order
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A reaction is_______ with respect to a particular species if the rate of reaction is independent of the concentration of that species
Zero Order
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Other cards in this set
Card 2
Front
A substance that speeds up a chemical reaction but remains chemically unchanged at the end of the reaction. It works by finding an alternate route by which the reaction can take place therefore lowering the activation energy
Back
Catalyst
Card 3
Front
A technique that measures the concentration of a colored solution by measuring the specific wavelength of light absorbed by the solution
Back
Card 4
Front
A reaction is______ with respect to that particular species if the rate of reaction is directly proportional to the concentration of that species
Back
Card 5
Front
The time taken for the concentration of a reactant to reduce by half and is independent of concentration for a first order reactant
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