EBK CHEMISTRY
EBK CHEMISTRY
9th Edition
ISBN: 8220100453809
Author: ZUMDAHL
Publisher: Cengage Learning US
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Chapter 17, Problem 1RQ

Define the following:

a. spontaneous process

b. entropy

c. positional probability

d. system

e. surroundings

f. universe

(a)

Expert Solution
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Interpretation Introduction

Interpretation: The given term spontaneous process has to be defined.

Concept introduction: Thermodynamics is associated with heat, temperature and its relation with energy and work. It helps us to predict whether a process will take place or not. But it gives no information about the time required for the process. The terms associated with thermodynamics are system, surrounding, entropy, spontaneity and many more.

Explanation of Solution

A process which occurs without any interference or without any external force is termed as a spontaneous process.

An increase in the entropy of universe is the driving force for a spontaneous reaction

(b)

Expert Solution
Check Mark
Interpretation Introduction

Interpretation: The given term entropy has to be defined.

Concept introduction: Thermodynamics is associated with heat, temperature and its relation with energy and work. It helps us to predict whether a process will take place or not. But it gives no information about the time required for the process. The terms associated with thermodynamics are system, surrounding, entropy, spontaneity and many more.

Explanation of Solution

Entropy is a measure of molecular randomness or disorder. It describes the positions or energy levels available to a system in a given state.

Entropy is an important part of thermodynamics that tells about the disorganized energy of a system. It is termed as a measure of molecular randomness or disorder.

It describes the positions or energy levels available to a system in a given state.

(c)

Expert Solution
Check Mark
Interpretation Introduction

Interpretation: The given term positional probability has to be defined.

Concept introduction: Thermodynamics is associated with heat, temperature and its relation with energy and work. It helps us to predict whether a process will take place or not. But it gives no information about the time required for the process. The terms associated with thermodynamics are system, surrounding, entropy, spontaneity and many more.

Explanation of Solution

Positional probability is the probability of occurrence of particular arrangements of a given state and it depends upon the number of configurations in space that yields a particular state.

(d)

Expert Solution
Check Mark
Interpretation Introduction

Interpretation: The given term system has to be defined.

Concept introduction: Thermodynamics is associated with heat, temperature and its relation with energy and work. It helps us to predict whether a process will take place or not. But it gives no information about the time required for the process. The terms associated with thermodynamics are system, surrounding, entropy, spontaneity and many more.

Explanation of Solution

The process that is being taken into account takes place in a particular part of universe. This particular part is known as the system.

In physical chemistry, the universe is divided into two parts; system and surrounding. The process that is being taken into account takes place in a particular part of universe. This particular part is known as the system.

(e)

Expert Solution
Check Mark
Interpretation Introduction

Interpretation: The given term surroundings has to be defined.

Concept introduction: Thermodynamics is associated with heat, temperature and its relation with energy and work. It helps us to predict whether a process will take place or not. But it gives no information about the time required for the process. The terms associated with thermodynamics are system, surrounding, entropy, spontaneity and many more.

Explanation of Solution

The process that is being taken into account takes place in a particular part of universe. This particular part is known as the system. The surrounding comprises of the region that is present outside the system.

(f)

Expert Solution
Check Mark
Interpretation Introduction

Interpretation: The given term universe has to be defined.

Concept introduction: Thermodynamics is associated with heat, temperature and its relation with energy and work. It helps us to predict whether a process will take place or not. But it gives no information about the time required for the process. The terms associated with thermodynamics are system, surrounding, entropy, spontaneity and many more.

Explanation of Solution

The area that includes the system and the surrounding is known as universe.  The process that is being taken into account takes place in a particular part of universe. This particular part is known as the system. The surrounding comprises of the region that is present outside the system.

The system and the surroundings together are known as the universe.

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Chapter 17 Solutions

EBK CHEMISTRY

Ch. 17 - For the process A(l) A(g), which direction is...Ch. 17 - For a liquid, which would you expect to be larger,...Ch. 17 - Gas A2 reacts with gas B2 to form gas AB at a...Ch. 17 - What types of experiments can be carried out to...Ch. 17 - A friend tells you, Free energy G and pressure P...Ch. 17 - Prob. 6ALQCh. 17 - Predict the sign of S for each of the following...Ch. 17 - Is Ssurr favorable or unfavorable for exothermic...Ch. 17 - At 1 atm, liquid water is heated above 100C. For...Ch. 17 - When (if ever) are high temperatures unfavorable...Ch. 17 - The synthesis of glucose directly from CO2 and H2O...Ch. 17 - When the environment is contaminated by a toxic or...Ch. 17 - Entropy has been described as times arrow....Ch. 17 - Human DNA contains almost twice as much...Ch. 17 - A mixture of hydrogen gas and chlorine gas remains...Ch. 17 - Consider the following potential energy plots: a....Ch. 17 - Ssurr is sometimes called the energy disorder...Ch. 17 - Given the following illustration, what can be said...Ch. 17 - The third law of thermodynamics states that the...Ch. 17 - The deciding factor on why HF is a weak acid and...Ch. 17 - List three different ways to calculate the...Ch. 17 - What information can be determined from G for a...Ch. 17 - Monochloroethane (C2H5Cl) can be produced by the...Ch. 17 - At 1500 K, the process I2(g)2I(g)10atm10atm is not...Ch. 17 - Which of the following processes are spontaneous?...Ch. 17 - Which of the following processes are spontaneous?...Ch. 17 - Table 16-1 shows the possible arrangements of four...Ch. 17 - Consider the following illustration of six...Ch. 17 - Consider the following energy levels, each capable...Ch. 17 - Redo Exercise 29 with two particles A and B, which...Ch. 17 - Choose the substance with the larger positional...Ch. 17 - Which of the following involve an increase in the...Ch. 17 - Predict the sign of Ssurr for the following...Ch. 17 - Calculate Ssurr for the following reactions at 25C...Ch. 17 - Given the values of H and S, which of the...Ch. 17 - At what temperatures will the following processes...Ch. 17 - Ethanethiol (C2H5SH; also called ethyl mercaptan)...Ch. 17 - For mercury, the enthalpy of vaporization is 58.51...Ch. 17 - For ammonia (NH3), the enthalpy of fusion is 5.65...Ch. 17 - The enthalpy of vaporization of ethanol is 38.7...Ch. 17 - Predict the sign of S for each of the following...Ch. 17 - Predict the sign of S for each of the following...Ch. 17 - For each of the following pairs of substances,...Ch. 17 - For each of the following pairs, which substance...Ch. 17 - Predict the sign of S and then calculate S for...Ch. 17 - Predict the sign of S and then calculate S for...Ch. 17 - For the reaction C2H2(g)+4F2(g)2CF4(g)+H2(g) S is...Ch. 17 - For the reaction CS2(g)+3O2(g)CO2(g)+2SO2(g) S is...Ch. 17 - It is quite common for a solid to change from one...Ch. 17 - Two crystalline forms of white phosphorus are...Ch. 17 - Consider the reaction 2O(g)O2(g) a. Predict the...Ch. 17 - Hydrogen cyanide is produced industrially by the...Ch. 17 - From data in Appendix 4, calculate H, S, and G for...Ch. 17 - The major industrial use of hydrogen is in the...Ch. 17 - For the reaction at 298 K, 2NO2(g)N2O4(g) the...Ch. 17 - At 100C and 1.00 atm, H = 40.6 kJ/mol for the...Ch. 17 - Given the following data:...Ch. 17 - Given the following data:...Ch. 17 - For the reaction SF4(g)+F2(g)SF6(g) the value of G...Ch. 17 - The value of G for the reaction...Ch. 17 - Consider the reaction...Ch. 17 - Consider the reaction 2POCl3(g)2PCl3(g)+O2(g) a....Ch. 17 - Using data from Appendix 4, calculate H, S and G...Ch. 17 - Consider two reactions for the production of...Ch. 17 - Using data from Appendix 4, calculate G for the...Ch. 17 - Using data from Appendix 4, calculate G for the...Ch. 17 - Consider the reaction 2NO2(g)N2O4(g) For each of...Ch. 17 - Consider the following reaction:...Ch. 17 - One of the reactions that destroys ozone in the...Ch. 17 - Hydrogen sulfide can be removed from natural gas...Ch. 17 - Consider the following reaction at 25.0C:...Ch. 17 - The standard free energies of formation and the...Ch. 17 - Calculate G forH2O(g)+12O2(g)H2O2(g) at 600. K,...Ch. 17 - The Ostwald process for the commercial production...Ch. 17 - Cells use the hydrolysis of adenosine...Ch. 17 - One reaction that occurs in human metabolism is...Ch. 17 - Consider the following reaction at 800. K:...Ch. 17 - Consider the following reaction at 298 K:...Ch. 17 - Consider the relationship In(K)=HRT+SR The...Ch. 17 - The equilibrium constant K for the reaction...Ch. 17 - Using Appendix 4 and the following data, determine...Ch. 17 - Some water is placed in a coffee-cup calorimeter....Ch. 17 - Calculate the entropy change for the vaporization...Ch. 17 - As O2(l) is cooled at 1 atm, it freezes at 54.5 K...Ch. 17 - Consider the following reaction:...Ch. 17 - Using the following data, calculate the value of...Ch. 17 - Many biochemical reactions that occur in cells...Ch. 17 - Carbon monoxide is toxic because it bonds much...Ch. 17 - In the text, the equation G=G+RTIn(Q) was derived...Ch. 17 - Prob. 91AECh. 17 - Use the equation in Exercise 79 to determine H and...Ch. 17 - Prob. 93AECh. 17 - Consider the following diagram of free energy (G)...Ch. 17 - Prob. 95CWPCh. 17 - For rubidium Hvapo=69.0KJ/mol at 686C, its boiling...Ch. 17 - Given the thermodynamic data below, calculate S...Ch. 17 - Consider the reaction: H2S(g)+SO2(g)3S(g)+2H2O(l)...Ch. 17 - The following reaction occurs in pure water:...Ch. 17 - Prob. 100CWPCh. 17 - Consider the reaction: PCl3(g)+Cl2(g)PCl5(g) At...Ch. 17 - The equilibrium constant for a certain reaction...Ch. 17 - Consider two perfectly insulated vessels. Vessel 1...Ch. 17 - Liquid water at 25C is introduced into an...Ch. 17 - Using data from Appendix 4, calculate H, G, and K...Ch. 17 - Entropy can be calculated by a relationship...Ch. 17 - a. Using the free energy profile for a simple...Ch. 17 - Consider the reaction H2(g)+Br2(g)2HBr(g) where H...Ch. 17 - Consider the system A(g)B(g) at25C. a. Assuming...Ch. 17 - The equilibrium constant for a certain reaction...Ch. 17 - If wet silver carbonate is dried in a stream of...Ch. 17 - Carbon tetrachloride (CCl4) and benzene (C6H6)...Ch. 17 - Sodium chloride is added to water (at 25C) until...Ch. 17 - You have a 1.00-L sample of hot water (90.0C)...Ch. 17 - Consider a weak acid, HX. If a 0.10-M solution of...Ch. 17 - Some nonelectrolyte solute (molar mass = 142...Ch. 17 - For the equilibrium A(g)+2B(g)C(g) the initial...Ch. 17 - What is the pH of a 0. 125-M solution of the weak...Ch. 17 - Impure nickel, refined by smelting sulfide ores in...
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