EBK GENERAL CHEMISTRY: THE ESSENTIAL CO
EBK GENERAL CHEMISTRY: THE ESSENTIAL CO
7th Edition
ISBN: 8220106637203
Author: Chang
Publisher: YUZU
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Chapter 14, Problem 14.5QP

(a)

Interpretation Introduction

Interpretation: The rate expression for the given reaction has to be written.

Concept Introduction:

The rate of a reaction is the measure of how fast a reactant is consumed or a product is formed. The rate of a reaction is the ratio of change in concentration of reactant or product to the elapsed time.

Consider a reaction:

AB

In this reaction, the reactant A has been converted into the product B.

Based on the definition of rate, the rate expression for this reaction can be given as follows:

Rate=-Δ[A]Δt

-ve sign indicates the decrease in concentration of the reactant A.

[A]-Concentration of the reactant A in molarity.

Rate=+Δ[B]Δt

+ve sign indicates the increase in concentration of the product B.

[B]-Concentration of the reactant B in molarity.

Δt-Timeperiod

Δ- Difference between initial and final states.

For a complex reaction such as:

aA+bBcC+dD

The stoichiometric coefficients are considered in the rate expression for the complex reactions.

In this complex reaction:

The stoichiometric coefficients of the reactants are: a and b

The stoichiometric coefficients of the products are: c and d

Therefore, the rate expression for the reaction can be given as follows:

Rate=-1aΔ[A]Δt=-1bΔ[B]Δt=1cΔ[C]Δt=1dΔ[D]Δt

(a)

Expert Solution
Check Mark

Explanation of Solution

The given reaction is :

H2(g)+I2(g)2HI(g)

The stoichiometric coefficients are considered in the rate expression for the complex reactions.

In this complex reaction:

The stoichiometric coefficients of the reactants are: 1 and 1

The stoichiometric coefficients of the product is: 2

Therefore, the rate expression for the reaction can be given as follows:

Rate=-Δ[H2]Δt=-Δ[I2]Δt=12Δ[HI]Δt

(b)

Interpretation Introduction

Interpretation: The rate expression for the given reaction has to be written.

Concept Introduction:

The rate of a reaction is the measure of how fast a reactant is consumed or a product is formed. The rate of a reaction is the ratio of change in concentration of reactant or product to the elapsed time.

Consider a reaction:

AB

In this reaction, the reactant A has been converted into the product B.

Based on the definition of rate, the rate expression for this reaction can be given as follows:

Rate=-Δ[A]Δt

-ve sign indicates the decrease in concentration of the reactant A.

[A]-Concentration of the reactant A in molarity.

Rate=+Δ[B]Δt

+ve sign indicates the increase in concentration of the product B.

[B]-Concentration of the reactant B in molarity.

Δt-Timeperiod

Δ- Difference between initial and final states.

For a complex reaction such as:

aA+bBcC+dD

The stoichiometric coefficients are considered in the rate expression for the complex reactions.

In this complex reaction:

The stoichiometric coefficients of the reactants are: a and b

The stoichiometric coefficients of the products are: c and d

Therefore, the rate expression for the reaction can be given as follows:

Rate=-1aΔ[A]Δt=-1bΔ[B]Δt=1cΔ[C]Δt=1dΔ[D]Δt

(b)

Expert Solution
Check Mark

Explanation of Solution

The given reaction is :

2H2(g)+O2(g)2H2O(g)

The stoichiometric coefficients are considered in the rate expression for the complex reactions.

In this complex reaction:

The stoichiometric coefficients of the reactants are: 2 and 1

The stoichiometric coefficients of the product is: 2

Therefore, the rate expression for the reaction can be given as follows:

Rate=-12Δ[H2]Δt=-Δ[O2]Δt=12Δ[H2O]Δt

(c)

Interpretation Introduction

Interpretation: The rate expression for the given reaction has to be written.

Concept Introduction:

The rate of a reaction is the measure of how fast a reactant is consumed or a product is formed. The rate of a reaction is the ratio of change in concentration of reactant or product to the elapsed time.

Consider a reaction:

AB

In this reaction, the reactant A has been converted into the product B.

Based on the definition of rate, the rate expression for this reaction can be given as follows:

Rate=-Δ[A]Δt

-ve sign indicates the decrease in concentration of the reactant A.

[A]-Concentration of the reactant A in molarity.

Rate=+Δ[B]Δt

+ve sign indicates the increase in concentration of the product B.

[B]-Concentration of the reactant B in molarity.

Δt-Timeperiod

Δ- Difference between initial and final states.

For a complex reaction such as:

aA+bBcC+dD

The stoichiometric coefficients are considered in the rate expression for the complex reactions.

In this complex reaction:

The stoichiometric coefficients of the reactants are: a and b

The stoichiometric coefficients of the products are: c and d

Therefore, the rate expression for the reaction can be given as follows:

Rate=-1aΔ[A]Δt=-1bΔ[B]Δt=1cΔ[C]Δt=1dΔ[D]Δt

(c)

Expert Solution
Check Mark

Explanation of Solution

The given reaction is :

5Br(aq)+BrO3(aq)+6H+(aq)3Br2(aq)+3H2O(l)

The stoichiometric coefficients are considered in the rate expression for the complex reactions.

In this complex reaction:

The stoichiometric coefficients of the reactants are: 5,1and 6

The stoichiometric coefficients of the products are: 3and 3

Therefore, the rate expression for the reaction can be given as follows:

Rate=-15Δ[Br]Δt=-Δ[BrO3]Δt=-16Δ[H+]Δt=13Δ[Br2]Δt=13Δ[H2O]Δt

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Chapter 14 Solutions

EBK GENERAL CHEMISTRY: THE ESSENTIAL CO

Ch. 14.4 - Practice Exercise The first-order rate constant...Ch. 14.4 - Review of Concepts (a) What can you deduce about...Ch. 14.5 - Practice Exercise The reaction between NO2 and CO...Ch. 14.5 - Prob. 1RCCh. 14.6 - Prob. 1RCCh. 14 - Prob. 14.1QPCh. 14 - 15.2 Explain the difference between physical...Ch. 14 - Prob. 14.3QPCh. 14 - Prob. 14.4QPCh. 14 - Prob. 14.5QPCh. 14 - 14.6 Consider the reaction Suppose that at a...Ch. 14 - Prob. 14.7QPCh. 14 - 14.8 What are the units for the rate constants of...Ch. 14 - Prob. 14.9QPCh. 14 - Prob. 14.10QPCh. 14 - Prob. 14.11QPCh. 14 - Prob. 14.13QPCh. 14 - Prob. 14.14QPCh. 14 - Prob. 14.15QPCh. 14 - Prob. 14.16QPCh. 14 - Prob. 14.17QPCh. 14 - Prob. 14.18QPCh. 14 - Prob. 14.19QPCh. 14 - Prob. 14.20QPCh. 14 - 14.21 What is the half-life of a compound if 75...Ch. 14 - 14.22 The thermal decomposition of phosphine (PH3)...Ch. 14 - Prob. 14.23QPCh. 14 - Prob. 14.24QPCh. 14 - 14.25 Consider the first-order reaction A → B...Ch. 14 - Prob. 14.26QPCh. 14 - 14.27 Define activation energy. What role does...Ch. 14 - Prob. 14.28QPCh. 14 - Prob. 14.29QPCh. 14 - 14.30 As we know, methane burns readily in oxygen...Ch. 14 - Prob. 14.31QPCh. 14 - Prob. 14.32QPCh. 14 - Prob. 14.33QPCh. 14 - Prob. 14.34QPCh. 14 - Prob. 14.35QPCh. 14 - Prob. 14.36QPCh. 14 - Prob. 14.37QPCh. 14 - 14.38 The rate at which tree crickets chirp is 2.0...Ch. 14 - 14.39 The diagram here describes the initial state...Ch. 14 - Prob. 14.40QPCh. 14 - Prob. 14.41QPCh. 14 - Prob. 14.42QPCh. 14 - 14.43 Explain why termolecular reactions are...Ch. 14 - 14.44 What is the rate-determining step of a...Ch. 14 - Prob. 14.45QPCh. 14 - Prob. 14.46QPCh. 14 - Prob. 14.47QPCh. 14 - Prob. 14.48QPCh. 14 - Prob. 14.49QPCh. 14 - Prob. 14.50QPCh. 14 - Prob. 14.51QPCh. 14 - Prob. 14.52QPCh. 14 - Prob. 14.53QPCh. 14 - Prob. 14.54QPCh. 14 - Prob. 14.55QPCh. 14 - Prob. 14.56QPCh. 14 - Prob. 14.57QPCh. 14 - Prob. 14.58QPCh. 14 - Prob. 14.59QPCh. 14 - Prob. 14.60QPCh. 14 - Prob. 14.61QPCh. 14 - Prob. 14.62QPCh. 14 - Prob. 14.63QPCh. 14 - Prob. 14.64QPCh. 14 - Prob. 14.65QPCh. 14 - 14.66 The decomposition of N2O to N2 and O2 is a...Ch. 14 - Prob. 14.67QPCh. 14 - Prob. 14.68QPCh. 14 - 14.69 Consider the zero-order reaction a → B....Ch. 14 - Prob. 14.70QPCh. 14 - Prob. 14.72QPCh. 14 - Prob. 14.73QPCh. 14 - Prob. 14.74QPCh. 14 - Prob. 14.75QPCh. 14 - Prob. 14.76QPCh. 14 - Prob. 14.77QPCh. 14 - Prob. 14.78QPCh. 14 - Prob. 14.79QPCh. 14 - Prob. 14.80QPCh. 14 - Prob. 14.81QPCh. 14 - Prob. 14.82QPCh. 14 - 14.83 When a mixture of methane and bromine is...Ch. 14 - 14.84 Consider this elementary step: (a)...Ch. 14 - Prob. 14.85QPCh. 14 - Prob. 14.86QPCh. 14 - 14.87 In recent years ozone in the stratosphere...Ch. 14 - Prob. 14.88QPCh. 14 - Prob. 14.90QPCh. 14 - Prob. 14.91QPCh. 14 - Prob. 14.92QPCh. 14 - Prob. 14.93QPCh. 14 - Prob. 14.94QPCh. 14 - Prob. 14.95QPCh. 14 - Prob. 14.96QPCh. 14 - Prob. 14.97QPCh. 14 - Prob. 14.98QPCh. 14 - Prob. 14.100QPCh. 14 - Prob. 14.101QPCh. 14 - 14.102 Consider the potential energy profiles...Ch. 14 - Prob. 14.103QPCh. 14 - Prob. 14.104QPCh. 14 - 14.105 The activation energy for the...Ch. 14 - Prob. 14.106QPCh. 14 - Prob. 14.107SPCh. 14 - Prob. 14.108SPCh. 14 - Prob. 14.109SPCh. 14 - Prob. 14.110SPCh. 14 - Prob. 14.111SPCh. 14 - Prob. 14.112SPCh. 14 - Prob. 14.113SPCh. 14 - Prob. 14.114SPCh. 14 - Prob. 14.115SPCh. 14 - 14.116 To prevent brain damage, a drastic medical...Ch. 14 - Prob. 14.117SPCh. 14 - Prob. 14.118SP
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