2.3 kinetics Flashcards
what does the rate of a chemical reaction normally depend on
the concentration of the reactants
what are the orders of reaction used for
to relate the rate of a reaction to the reacting species
complete the sentence; if changing the concentration of reactant A has no effect on the rate of the reaction…
then the reaction is zero order with respect to A
when is a reaction zero order, with respect to A
if you changed the concentration of the reactant A but there was no effect on the rate of the reaction
complete the sentence; if doubling the concentration of a reactant A doubles the rate of the reaction…
the reaction is first order with respect to A
when is a reaction first order
when the doubling of a reactant doubles the rate of the reaction
what does rate =
k [A]
when is a reactant considered to be second order
if doubling the concentration quadruples the rate of the reaction
what does rate = in respect to second order
k [ A] ‘2
what is the order of a reaction
the power to which the concentration of that reactant is raised in the rate equation
what is the overall order of a reaction
the sum of the powers to which the concentrations of the reactants are raised in the rate equation
how can the order of a reaction be determined
only from experimental data
what is the reaction mechanism
the series of steps that a reaction occurs by
what is another name for the slowest step
the rate determining step
what can experimentally determined rate equations be used to determine
possible reaction mechanisms
what is meant by entropy
the measure of the degree of disorder of a system
