PART ONE: Select all of the correct statements about reaction rates from the cho

Question

PART ONE:

Select all of the correct statements about reaction rates from the choices below.

(A)The lower the rate of a reaction the longer it takes to reach completion.


(B)Reaction rates always increase as masses of solid reactants increase.


(C)Reaction rates increase as concentrations of homogeneous catalysts increase.


(D)Solid catalysts increase reaction rates as their surface areas increase.


(E)Catalysts decrease reaction rates.


(F)Reaction rates decrease with increasing temperature.


(G)Reaction rates increase with increasing temperature.

PART TWO:

Select all of the correct statements about equilibrium from the choices below.

(A)At equilibrium the rates of forward and reverse reactions are equal.



(B)At equilibrium there are always equal amounts of reactants and products.



(C)At equilibrium all reactions stop.



(D)At equilibrium no more reactants are transformed into products.



(F)As a reaction proceeds forward toward equilibrium the forward rate drops.



(G)As a reaction proceeds forward toward equilibrium the reverse rate constant rises.

Explanation / Answer

Part one: correct statements about reaction rates

(a)The lower the rate of a reaction the longer it takes to reach completion.

(d)Solid catalysts increase reaction rates as their surface areas increase.

(g)Reaction rates increase with increasing temperature

Part two: correct statements about eqilibrium

(a)At equilibrium the rates of forward and reverse reactions are equal.

(d)At equilibrium no more reactants are transformed into products.

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