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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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.
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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
Which of the following statements is true about reaction rates? A Reaction rates can be predicted from the coefficients of the balanced equation. B Reactants usually disappear faster than the products appear. C Reactants usually disappear slower than the products appear. D Reaction rates can only be determined by experimentation.
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A chemical reaction is endothermic and has an activation energy that is twice the value of the enthalpy of the reaction. Draw a diagram depicting the energy of the reaction as it progresses. Label the position of the reactants and products and indicate the activation energy and enthalpy of reaction.
Catalysts function by decreasing the required to form the transition state: Activation energy (A) (B) Temperature