Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
8th Edition
ISBN: 9780134015187
Author: John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson
Publisher: PEARSON
Question
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Chapter 7, Problem 7.66AP

(a)

Interpretation Introduction

Interpretation:

The effect on the equilibrium concentration of FeCl2+ when Fe(NO3)3 is added in the given reaction is to be determined.

Concept Introduction:

Le Chatelier’s principle: If an equilibrium is disturbed by changing conditions, the system will moves the equilibrium to reverse the change.

Factor’s that effect chemical equilibria:

  • Concentration – Equilibrium will be affected by changing the concentration of reactant or product. If we increase the concentration of reactant system will try to reverse the change by favouring forward reaction and thus increase the concentration of products. Likewise adding products increase yield of reactants.
  • Temperature – When the temperature increases equilibrium will shift in the endothermic direction, in the direction that absorbs heat. When the temperature decreases equilibrium will shift in the exothermic direction, in the direction that releases heat.
  • Pressure – If the reaction consists of only liquid and solid reactants and products, pressure has no effect in the equilibrium.

    In gas reactions if the number of moles has no change then there will be no effect by pressure on equilibrium.

    If pressure increases then equilibrium will shift to the direction having less number of molecules and if pressure decreases system will shift to the direction having more number of molecules.

(b)

Interpretation Introduction

Interpretation:

The effect on the equilibrium concentration of FeCl2+ when Cl is precipitated by addition of AgNO3 in the given reaction is to be determined.

Concept Introduction:

Le Chatelier’s principle: If an equilibrium is disturbed by changing conditions, the system will moves the equilibrium to reverse the change.

Factor’s that effect chemical equilibria:

  • Concentration – Equilibrium will be affected by changing the concentration of reactant or product. If we increase the concentration of reactant system will try to reverse the change by favouring forward reaction and thus increase the concentration of products. Likewise adding products increase yield of reactants.
  • Temperature – When the temperature increases equilibrium will shift in the endothermic direction, in the direction that absorbs heat. When the temperature decreases equilibrium will shift in the exothermic direction, in the direction that releases heat.
  • Pressure – If the reaction consists of only liquid and solid reactants and products, pressure has no effect in the equilibrium.

    In gas reactions if the number of moles has no change then there will be no effect by pressure on equilibrium.

    If pressure increases then equilibrium will shift to the direction having less number of molecules and if pressure decreases system will shift to the direction having more number of molecules.

(c)

Interpretation Introduction

Interpretation:

The effect on the equilibrium concentration of FeCl2+ when temperature is increased in the given reaction is to be determined.

Concept Introduction:

Enthalpy (H): It is the total amount of heat in a particular system.

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

Le Chatelier’s principle: If an equilibrium is disturbed by changing conditions, the system will moves the equilibrium to reverse the change.

Factor’s that effect chemical equilibria:

  • Concentration – Equilibrium will be affected by changing the concentration of reactant or product. If we increase the concentration of reactant system will try to reverse the change by favouring forward reaction and thus increase the concentration of products. Likewise adding products increase yield of reactants.
  • Temperature – When the temperature increases equilibrium will shift in the endothermic direction, in the direction that absorbs heat. When the temperature decreases equilibrium will shift in the exothermic direction, in the direction that releases heat.
  • Pressure – If the reaction consists of only liquid and solid reactants and products, pressure has no effect in the equilibrium.

    In gas reactions if the number of moles has no change then there will be no effect by pressure on equilibrium.

    If pressure increases then equilibrium will shift to the direction having less number of molecules and if pressure decreases system will shift to the direction having more number of molecules.

(d)

Interpretation Introduction

Interpretation:

The effect on the equilibrium concentration of HI when a catalyst is added in the given reaction is to be determined.

Concept Introduction:

Le Chatelier’s principle: If an equilibrium is disturbed by changing conditions, the system will moves the equilibrium to reverse the change.

Factor’s that effect chemical equilibria:

  • Concentration – Equilibrium will be affected by changing the concentration of reactant or product. If we increase the concentration of reactant system will try to reverse the change by favouring forward reaction and thus increase the concentration of products. Likewise adding products increase yield of reactants.
  • Temperature – When the temperature increases equilibrium will shift in the endothermic direction, in the direction that absorbs heat. When the temperature decreases equilibrium will shift in the exothermic direction, in the direction that releases heat.
  • Pressure – If the reaction consists of only liquid and solid reactants and products, pressure has no effect in the equilibrium.

    In gas reactions if the number of moles has no change then there will be no effect by pressure on equilibrium.

    If pressure increases then equilibrium will shift to the direction having less number of molecules and if pressure decreases system will shift to the direction having more number of molecules.

Catalyst: Substance which helps in increasing the rate of a particular reaction without getting consumed in the reaction.

Activation energy: It is defined as the minimum energy required by the reacting species in order to undergo chemical reaction.

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Chapter 7 Solutions

Fundamentals of General, Organic, and Biological Chemistry (8th Edition)

Ch. 7.5 - The reaction between iron and oxygen to form rust...Ch. 7.6 - Prob. 7.10PCh. 7.8 - Prob. 7.11PCh. 7.8 - Prob. 7.12PCh. 7.8 - Prob. 7.13PCh. 7.8 - The following diagrams represent two similar...Ch. 7.9 - Prob. 7.3CIAPCh. 7.9 - Prob. 7.4CIAPCh. 7.9 - Is the yield of SO3 at equilibrium favored by a...Ch. 7.9 - Prob. 7.16PCh. 7.9 - Prob. 7.17PCh. 7 - What are the signs of H, S, and G for the...Ch. 7 - Prob. 7.19UKCCh. 7 - Prob. 7.20UKCCh. 7 - Two curves are shown in the following energy...Ch. 7 - Prob. 7.22UKCCh. 7 - Prob. 7.23APCh. 7 - Prob. 7.24APCh. 7 - Prob. 7.25APCh. 7 - Prob. 7.26APCh. 7 - Acetylene (H C C H) is the fuel used in welding...Ch. 7 - Prob. 7.28APCh. 7 - Prob. 7.29APCh. 7 - Prob. 7.30APCh. 7 - Prob. 7.31APCh. 7 - Prob. 7.32APCh. 7 - Prob. 7.33APCh. 7 - Prob. 7.34APCh. 7 - Why are most spontaneous reactions exothermic?Ch. 7 - Prob. 7.36APCh. 7 - Prob. 7.37APCh. 7 - Prob. 7.38APCh. 7 - Prob. 7.39APCh. 7 - Prob. 7.40APCh. 7 - Prob. 7.41APCh. 7 - Prob. 7.42APCh. 7 - Prob. 7.43APCh. 7 - Prob. 7.44APCh. 7 - Prob. 7.45APCh. 7 - Prob. 7.46APCh. 7 - Prob. 7.47APCh. 7 - Prob. 7.48APCh. 7 - What is meant by the term chemical equilibrium?...Ch. 7 - Prob. 7.50APCh. 7 - Prob. 7.51APCh. 7 - Prob. 7.52APCh. 7 - Prob. 7.53APCh. 7 - Prob. 7.54APCh. 7 - Use your answer from Problem 7.53 to calculate the...Ch. 7 - Use your answer from Problem 7.54 to calculate the...Ch. 7 - Prob. 7.57APCh. 7 - Prob. 7.58APCh. 7 - Prob. 7.59APCh. 7 - Prob. 7.60APCh. 7 - Prob. 7.61APCh. 7 - Prob. 7.62APCh. 7 - Prob. 7.63APCh. 7 - Prob. 7.64APCh. 7 - Prob. 7.65APCh. 7 - Prob. 7.66APCh. 7 - For the unbalanced combustion reaction shown, 1...Ch. 7 - Prob. 7.68CPCh. 7 - Prob. 7.69CPCh. 7 - Prob. 7.70CPCh. 7 - Urea is a metabolic waste product that decomposes...Ch. 7 - Prob. 7.72CPCh. 7 - Prob. 7.73CPCh. 7 - Methanol, CH3OH, is used as race car fuel. (a)...Ch. 7 - Prob. 7.75CPCh. 7 - Prob. 7.76CPCh. 7 - Prob. 7.77CPCh. 7 - Prob. 7.78GPCh. 7 - Prob. 7.79GPCh. 7 - Prob. 7.80GP
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