1. If the reaction below is initially at equilibrium, and then each of the following changes are made, predict which direction the reaction rate will be fastest until equilibrium is once again established: forward, reverse, or no change. H2(g) + Cl2(g) + 2 HCl(g) a. If the concentration of H₂ is increased, then the forward reaction will be fastest until equilibrium is re- established. b. If the concentration of HCl is decreased, then the forward reaction will be fastest until equilibrium is re-established. c. If the concentration of Cl₂ is decreased, then the reverse reaction will be fastest until equilibrium is re- established. 2. If the reaction below is initially at equilibrium, and then more NH4* is added, predict which direction the reaction rate will be fastest until equilibrium is once again established: forward, reverse, or no change. NH4+ (aq) + H₂O (1) ⇒ NH3 (aq) + H3O+ (aq) Answer: If more NH4* is added, then the forward reaction will be fastest until equilibrium is re- established.

1. If the reaction below is initially at equilibrium, and then each of the following changes are made, predict which direction the reaction rate will be fastest until equilibrium is once again established: forward, reverse, or no change. H2(g) + Cl2(g) + 2 HCl(g) a. If the concentration of H₂ is increased, then the forward reaction will be fastest until equilibrium is re- established. b. If the concentration of HCl is decreased, then the forward reaction will be fastest until equilibrium is re-established. c. If the concentration of Cl₂ is decreased, then the reverse reaction will be fastest until equilibrium is re- established. 2. If the reaction below is initially at equilibrium, and then more NH4* is added, predict which direction the reaction rate will be fastest until equilibrium is once again established: forward, reverse, or no change. NH4+ (aq) + H₂O (1) ⇒ NH3 (aq) + H3O+ (aq) Answer: If more NH4* is added, then the forward reaction will be fastest until equilibrium is re- established.

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 1ALQ: Consider an equilibrium mixture of four chemicals (A. B. C. and D. all gases) reacting in a closed...

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