How does adding a catalyst affect the rate of a chemical reaction? Has no effect on the rate of a reaction Decreases the reaction rate since there will be less reactants to from products quickly. Decreases the rate of reaction because the reactants molecules have lower kinetic energy limiting collisions Increases the rate of reaction by lowering the activation energy of the reaction without being used up in the reaction

How does adding a catalyst affect the rate of a chemical reaction? Has no effect on the rate of a reaction Decreases the reaction rate since there will be less reactants to from products quickly. Decreases the rate of reaction because the reactants molecules have lower kinetic energy limiting collisions Increases the rate of reaction by lowering the activation energy of the reaction without being used up in the reaction

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter17: Equilibrium

Section: Chapter Questions

Problem 9CR

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Similar questions

For the following reaction profile, indicate a. the positions of reactants and products. b. the activation energy. c. E for the reaction.
In each of the following, which reaction mechanism assumption is apparently being violated? Explain your answers. a. A reaction takes place more rapidly when the concentration of reactants is decreased. b. A reaction takes place more rapidly when the reaction mixture is cooled. c. The reaction rate of A+BAB increases as the concentration of A is increased but does not change as the concentration of B is increased.
Account for the relationship between the rate of a reaction and its activation energy.
Consider a reaction in which E a=129 kJ and H=29 kJ. In the presence of a catalyst, the activation energy is 48% of the uncatalyzed reaction. Follow the directions in Question 71 in drawing an energy diagram.
. Account for the increase in reaction rate brought about by a catalyst.
Consider the following hypothetical reaction: X+YProductsH=75kJ Draw a reaction-energy diagram for the reaction if the activation energy is 32 kJ.
use the kineticmolecular theory to explain why an increase in temperature increases reaction rate.