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this exam question is about the kinetics of complex reactions and the Eyring theory. " The
concentration of an unstable intermediate product is very low and temporally approximately
constant" This statement is correct; It corresponds to Bodenstein 's steady state approximation.
" A catalyst accelerates the rate of the reverse reaction by the same factor as the velocity
of the forward reaction " Also, this is correct. Otherwise, a catalyst would change the equilibrium
" temperature increase accelerates an exothermic equilibrium reaction, the velocity of the
forward reaction more than the rate of the reverse reaction ? " That is correct - . , it
is the reason that the equilibrium is an exothermic reaction at higher temperature to the left
shifted . " At equilibrium , the rate constants of the forward reaction and reverse reaction
are equal ? " This statement is not correct. at equilibrium , although the rates of forward
and reverse reactions are the same speed, but the rate constants are usually different
. " reactions between like-charged ions are faster in non-polar solvents in polar solvents
" If we look at the Brønsted - Christiansen - Scatchard equation , we see that in reactions
with like-charged particles , the rate constant increases when we either in polar solvents
or at high ionic strength to work . " reactions between like-charged ions are at higher ionic
strength faster than at low ionic strength ? " This is correct .