An In-Depth Concept of Chemical kinetics For IIT JEE (CHEMISTRY) Exams. Join Studyduniya.com for More. https://bit.ly/2q8GPrx

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Studies the rate at which a chemical process
occurs.
kinetics also sheds light on the reaction
mechanism (exactly how the reaction occurs).
KINETICS

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The speed of a reaction or the rate of a
reaction is defined as the change in
concentration of a reactant or product per
unit time.
RATE OF A CHEMICAL REACTION

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Concentration: The rate of a chemical
reaction at a given temperature depends on
the concentration of one or more reactants
and products.
Surface area of a solid reactant: Increasing the
surface area of the solid-phase reactant
increases the number of collisions per second
and therefore increases the reaction rate.
Nature of the reactants
FACTORS AFFECTING RATE OF
A REACTION (1/2)

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Pressure of a reactant: Under higher pressure
or at a higher concentration, gas molecules
collide more frequently and react at a faster
rate.
Temperature: A general rule is that a 10°C
temperature increase can double a reaction
rate.
presence/absence of a catalyst: The addition
of the catalyst increases the reaction rate.
FACTORS AFFECTING RATE OF
A REACTION (2/2)

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The representation of rate of a reaction in
terms of concentration of the reactants is
known as rate law.
RATE LAW

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The sum of powers of the concentration of the
reactants in the rate law expression is called
the order of that chemical reaction.
ORDER OF A REACTION

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The sum of powers of the concentration of the
reactants in the rate law expression is called
the order of that chemical reaction.
ORDER OF A REACTION

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RATE CONSTANT (1/2)

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Units of rate constant
RATE CONSTANT (2/2)

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INTEGRATED RATE EQUATIONS

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A 10°C temperature increase can double a
reaction rate.
TEMPERATURE DEPENDENCE OF
THE RATE OF A REACTION
Arrhenius equation