Which of the following factors would not be expected to affect reaction rate? (A) (B) (C) (D) (E) Adding an appropriate catalyst Grinding up a chunky solid reactant to expose more of its surface area The stability of the reactants (i.e., how stable or how likely a substance is to react) Increase the volume where the reaction would take place Increasing the reaction temperature

Which of the following factors would not be expected to affect reaction rate? (A) (B) (C) (D) (E) Adding an appropriate catalyst Grinding up a chunky solid reactant to expose more of its surface area The stability of the reactants (i.e., how stable or how likely a substance is to react) Increase the volume where the reaction would take place Increasing the reaction temperature

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The concentration of a reactant is measured at two time points as a reaction proceeds. At the first time point, the concentration of the reactant is 0.5 M; 20 seconds later, the concentration is 0.45 M. At what rate is the reactant being consumed? 0.0025 M/s 0.05 M/s 0.005 M/s 0.025 M/s 0.0225 M/s
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What can be done to lower the activation energy? Question 6 options: increasing the temperature adding more reactant molecules increasing the surface area of the particles adding a catalyst
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How does an increase in temperature affect rate of reaction? Explain this effect in terms of the collision theory of the reaction rate.
Which of the following will not affect the reaction rate of a reaction? Increasing the surface area of a solid reactant. use of a catalyst Changing the pressure of the air in the room O increasing the concentration of the reactants All affect the reaction rate of a reaction.
How does increasing temperature affect the rate of reaction? the activation energy increases so the reaction rate decreases the reactants have more kinetic energy so the frequency of the effective collisions increases the reactants have more kinetic energy so the frequency of the effective collisions decreases the activation energy increases so the reaction rate increases
Reaction rate increased by an increase of surface area of a reactant. One way to increase surface area is to add catalyst crush solid reactant into smaller pieces increase reactant's temperature increase reactant's concentration
Define the activation energy of the reaction.
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Classify the actions based on how they could affect a reaction rate. Rate increases Rate decreases Rate is unaffected Answer Bank decrease the concentration of a reactant decrease the surface area of a solid reactant increase the temperature add a catalyst