a) Select all of the correct statements about reaction rates from the choices be
ID: 886693 • Letter: A
Question
a) 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) The rate of a slow step has more effect on the overall reaction rate than the rate of a fast step.
d) Reaction rates decrease with increasing temperature.
e) Solid catalysts increase reaction rates as their surface areas increase.
f) Reaction rates increase with increasing temperature.
g) A balanced chemical reaction is necessary to relate the rate of reaction to the concentration of a reactant.
Explanation / Answer
rate of the reaction : may be define as change in concentration of reactants or products in one unit time.
a) The lower the rate of a reaction the longer it takes to reach completion.
c) The rate of a slow step has more effect on the overall reaction rate than the rate of a fast step.
e) Solid catalysts increase reaction rates as their surface areas increase.
f) Reaction rates increase with increasing temperature.
g) A balanced chemical reaction is necessary to relate the rate of reaction to the concentration of a reactant.
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