A Level Chemistry Chapter 22 Reaction Kinetics Detailed Summary Note

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22 reaction kinetics date


rate of reaction
the units of k vary change in amount/concentration of a reactant/product per unit time
N


according to the form -rate of reaction k(A) (B) where k rate constant
M
-




of the rate equatoin (A) and (B) conc. of reactants
-




m and n orders of the reaction
-




order of reaction
the power to which the concentration of the reactant is raised in
the rate equation (concentration is ignored if order is 0)
-overall order of reaction
the sum of powers of the reactants in a rate equation
concentration-time graph initial rates
&

to find the rate of
reaction, draw a
tangent and
calculate the slope

half-life (t1/2)
the time taken for the amount/concentration of the limiting
reactant in a reaction to decrease to half its initial value




half-life of a first-order reaction is independent of the
concentration of reactants
calculating the rate constant
-using initial rates and the rate equation
substitute the values of initial rate and concentrations to the
rate equation
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