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Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097

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BuyFindarrow_forward

Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097
Textbook Problem

What will happen to the number of moles of SO3 in equilibrium with SO2 and O2 in the reaction

2 SO 3 ( g ) 2 SO 2 ( g ) + O 2 ( g )

in each of the following cases?

a. Oxygen gas is added.

b. The pressure is increased by decreasing the volume of the reaction container.

c. In a rigid reaction container, the pressure is increased by adding argon gas.

d. The temperature is decreased (the reaction is endothermic).

e. Gaseous sulfur dioxide is removed.

(a)

Interpretation Introduction

Interpretation: The reaction of decomposition of SO3 is given. The change in number

of moles of SO3 in equilibrium with SO2 and O2 is to be calculated for the given conditions.

Concept introduction: The state when the reactants involved in a chemical reaction and the products formed in the reaction exist in concentrations having no further tendency to change is known as an equilibrium state of the reaction.

To determine: The change in number of moles of SO3 in equilibrium with SO2 and O2 when oxygen gas is added.

Explanation

Explanation

The stated reaction is,

2SO3(g)2SO2(g)+

(b)

Interpretation Introduction

Interpretation: The reaction of decomposition of SO3 is given. The change in number

of moles of SO3 in equilibrium with SO2 and O2 is to be calculated for the given conditions.

Concept introduction: The state when the reactants involved in a chemical reaction and the products formed in the reaction exist in concentrations having no further tendency to change is known as an equilibrium state of the reaction.

To determine: The change in number of moles of SO3 in equilibrium with SO2 and O2 when pressure is increased by decreasing the volume of the reaction container.

(c)

Interpretation Introduction

Interpretation: The reaction of decomposition of SO3 is given. The change in number

of moles of SO3 in equilibrium with SO2 and O2 is to be calculated for the given conditions.

Concept introduction: The state when the reactants involved in a chemical reaction and the products formed in the reaction exist in concentrations having no further tendency to change is known as an equilibrium state of the reaction.

To determine: The change in number of moles of SO3 in equilibrium with SO2 and O2 when argon gas is added to increase the pressure of the given reaction.

(d)

Interpretation Introduction

Interpretation: The reaction of decomposition of SO3 is given. The change in number

of moles of SO3 in equilibrium with SO2 and O2 is to be calculated for the given conditions.

Concept introduction: The state when the reactants involved in a chemical reaction and the products formed in the reaction exist in concentrations having no further tendency to change is known as an equilibrium state of the reaction.

To determine: The change in number of moles of SO3 in equilibrium with SO2 and O2 when temperature is decreased (endothermic reaction) for the given reaction.

(e)

Interpretation Introduction

Interpretation: The reaction of decomposition of SO3 is given. The change in number

of moles of SO3 in equilibrium with SO2 and O2 is to be calculated for the given conditions.

Concept introduction: The state when the reactants involved in a chemical reaction and the products formed in the reaction exist in concentrations having no further tendency to change is known as an equilibrium state of the reaction.

To determine: The change in number of moles of SO3 in equilibrium with SO2 and O2 when gaseous sulfur dioxide is removed.

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