For the chemical reaction system described by the diagram below, which statement is true? Energy Reaction Progress ) The activation energy for the reverse reaction is greater than the activation energy for the forward reaction. O The forward reaction is endothermic. O The activation energy for the forward reaction is greater than the activation energy for the reverse reaction. O At equilibrium, the activation energy for the forward reaction is equal to the activation energy for the reverse reactic O The reverse reaction is exothermic.

For the chemical reaction system described by the diagram below, which statement is true? Energy Reaction Progress ) The activation energy for the reverse reaction is greater than the activation energy for the forward reaction. O The forward reaction is endothermic. O The activation energy for the forward reaction is greater than the activation energy for the reverse reaction. O At equilibrium, the activation energy for the forward reaction is equal to the activation energy for the reverse reactic O The reverse reaction is exothermic.

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

See similar textbooks

Similar questions

The following series of diagrams represent the reaction XY followed over a period of time. The X molecules are red and the Y molecules are green. At the end of the time period depicted, has the reaction system reached equilibrium? Justify your answer with a one-sentence explanation.
Consider the following activation energy diagram. Which of the following statements about the diagram are true? (a) E a(forward)E a(reverse)(b) B represents the activation energy of the forward reaction. (c) Energy (H)for the reaction is AC. (d) E a(forward)=BA(e) E a(forward)=E a(reverse)C
The following data are for the system A(g)2B(g) (a) How long does it take the system to reach equilibrium? (b) How does the rate of the forward reaction compare with the rate of the reverse reaction after 45 s? After 90 s?
Classify each of the following statements as true or false. aSome equilibria depend on a steady supply of a reactant in order to maintain the equilibrium. bBoth forward and reverse reactions continue after equilibrium is reached. cEvery time reactant molecules collide, there is a reaction. dPotential energy during a collision is greater than potential energy before or after the collision. eThe properties of a transition state are between those of the reactants and products. fActivation energy is positive for both the forward and reverse reactions. gKinetic energy is changed to potential energy during a collision. hAn increase in temperature speeds the forward reaction but slows the reverse reaction. iA catalyst changes the steps by which a reaction is completed. jAn increase in concentration of a substance on the right-hand side of an equation speeds the reverse reaction rate. kAn increase in the concentration of a substance in an equilibrium increases the reaction rate in which the substance is a product. lReducing the volume of a gaseous equilibrium shifts the equilibrium in the direction of fewer gaseous molecules. mRaising temperature results in a shift in the forward direction of an endothermic equilibrium. nThe value of an equilibrium constant depends on temperature. oA large K indicates that an equilibrium is favored in the reverse direction.
. Equilibrium may be defined as the ________ of two processes, one of which is the opposite of the other.
What is the role of the activated complex in a chemical reaction?
. For a given reaction at a given temperature, the special ratio of products to reactants defined by the equilibrium constant is always equal to the same number. Explain why this is true, no matter what initial concentrations of reactants (or products) may have been taken in setting up an experiment.