Solutions Manual for for Chemistry: Structure and Properties
Solutions Manual for for Chemistry: Structure and Properties
1st Edition
ISBN: 9780321965295
Author: Nivaldo J. Tro, Kathy Thrush Shaginaw, Mary Beth Kramer
Publisher: PEARSON
bartleby

Concept explainers

bartleby

Videos

Textbook Question
Chapter 10, Problem 1SAQ

A chemical system produces 155 kJ of heat and does 22 kJ of work. What is ΔE for the surroundings?

  1. -177 kJ
  2. 177 kJ
  3. -133 kJ
  4. 133 kJ

Expert Solution & Answer
Check Mark
Interpretation Introduction

Interpretation:

To find out ΔE for the surroundings of a chemical system that produces 155kJ of heat and does 22kJ of work.

Concept Introduction: The relationship between heat, q , work, w , and ΔEsys is given as:

  ΔEsys=q+w

Answer to Problem 1SAQ

Correct answer:

Therefore, option (b) is correct and options (a), (c) and (d), are incorrect.

Explanation of Solution

Reasons for the correct statement: The heat is produced by the chemical system and released to the surroundings so, q=-155kJ

The work is done by the chemical system on the surroundings so, w=-22kJ

Substituting the values:

  ΔEsys=q+w.........(1)ΔEsys=155kJ+(22kJ)=177kJΔEsys=ΔEsurr(or)ΔEsurr=ΔEsys=(177kJ)=177kJ

Hence, option (b) is correct.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Chapter 10 Solutions

Solutions Manual for for Chemistry: Structure and Properties

Ch. 10 - Prob. 11SAQCh. 10 - Prob. 12SAQCh. 10 - Prob. 13SAQCh. 10 - Which set of compounds is arranged in order of...Ch. 10 - Prob. 15SAQCh. 10 - What is thermochemistry? Why is it important?Ch. 10 - What is energy? What is work? List some examples...Ch. 10 - Prob. 3ECh. 10 - What is the law of conservation of energy? How...Ch. 10 - A friend claims to have constructed a machine that...Ch. 10 - What is a state function? List some examples of...Ch. 10 - What is internal energy? Is internal energy a...Ch. 10 - If energy flows out of a chemical system and into...Ch. 10 - If the internal energy of the products of a...Ch. 10 - What is heat? Explain the difference between heat...Ch. 10 - How is the change in internal energy of a system...Ch. 10 - Explain how the sum of heat and work can be a...Ch. 10 - What is heat capacity? Explain the difference...Ch. 10 - Explain how the high specific heat capacity of...Ch. 10 - If two objects, A and B, of different temperature...Ch. 10 - What is pressure-volume work? How is it...Ch. 10 - What is calorimetry? Explain the difference...Ch. 10 - What is the change in enthalpy ( H) for a...Ch. 10 - Explain the difference between an exothermic and...Ch. 10 - From a molecular viewpoint where does the energy...Ch. 10 - From a molecular viewpoint, where does the energy...Ch. 10 - Is the change in enthalpy for a reaction an...Ch. 10 - Explain how the value of H for a reaction changes...Ch. 10 - What is Hess's law? Why is it useful?Ch. 10 - What is a standard state? What is the standard...Ch. 10 - How can bond energies be used to estimate H for a...Ch. 10 - Explain the difference between exothermic and...Ch. 10 - What is the standard enthalpy of formation for a...Ch. 10 - How do you calculate Hrxn from tabulated standard...Ch. 10 - What is lattice energy? How does lattice energy...Ch. 10 - Which statement is true of the internal energy of...Ch. 10 - During an energy exchange, a chemical system...Ch. 10 - Identify each energy exchange as primarily heat or...Ch. 10 - Identify each energy exchange as primarily heat or...Ch. 10 - A system releases 622 kJ of heat and does 105 kJ...Ch. 10 - A system absorbs 196 kJ of heat, and the...Ch. 10 - The gas in a piston (defined as the system) warms...Ch. 10 - The air in an inflated balloon (defined as the...Ch. 10 - A person packs two identical coolers for a picnic,...Ch. 10 - A kilogram of aluminum metal and a kilogram of...Ch. 10 - How much heat is required to warm 1.50 L of water...Ch. 10 - How much heat is required to warm 1.50 kg of sand...Ch. 10 - Suppose that 25 g of each substance is initially...Ch. 10 - An unknown mass of each substance, initially at...Ch. 10 - How much work (in J) is required to expand the...Ch. 10 - The average human lung expands by about 0.50 L...Ch. 10 - The air within a piston equipped with a cylinder...Ch. 10 - A gas is compressed from an initial volume of 5.55...Ch. 10 - When 1 mol of a fuel burns at constant pressure,...Ch. 10 - The change in internal energy for the combustion...Ch. 10 - Is each process exothermic or endothermic?...Ch. 10 - Is each process exothermic or endothermic?...Ch. 10 - Consider the thermochemical equation for the...Ch. 10 - What mass of natural gas (CH4) must bum to emit...Ch. 10 - Nitromethane (CH3NO2) burns in air to produce...Ch. 10 - Titanium reacts with iodine to form titanium (III)...Ch. 10 - The propane fuel (C3H8) used in gas barbeques bums...Ch. 10 - Charcoal is primarily carbon. Determine the mass...Ch. 10 - We submerge a silver block, initially at 58.5 °C...Ch. 10 - We submerge a 32.5-g iron rod, initially at 22.7...Ch. 10 - We submerge a 31.1-g wafer of pure gold initially...Ch. 10 - We submerge a 2.85-g lead weight, initially at...Ch. 10 - Two substances, A and B, initially at different...Ch. 10 - A 2.74-g sample of a substance suspected of being...Ch. 10 - Exactly 1.5 g of a fuel burns under conditions of...Ch. 10 - In order to obtain the largest possible amount of...Ch. 10 - When 0.514 g of biphenyl (C12H10) undergoes...Ch. 10 - Mothballs are composed primarily of the...Ch. 10 - Zinc metal reacts with hydrochloric acid according...Ch. 10 - Instant cold packs used to ice athletic injuries...Ch. 10 - For each generic reaction, determine the value of...Ch. 10 - Consider the generic reaction: A+2BC+3DH=155kJ...Ch. 10 - Calculate Hrxn for the reaction:...Ch. 10 - Calculate Hrxn for the reaction:...Ch. 10 - Calculate Hrxn for the reaction:...Ch. 10 - Calculate Hrxn for the reaction:...Ch. 10 - Hydrogenation reactions are used to add hydrogen...Ch. 10 - Ethanol is a possible fuel. Use average bond...Ch. 10 - Hydrogen, a potential future fuel, can be produced...Ch. 10 - Hydroxyl radicals react with and eliminate many...Ch. 10 - Write an equation for the formation of each...Ch. 10 - Prob. 82ECh. 10 - S3. Hydrazine (N2H4) is a fuel used by some...Ch. 10 - Prob. 84ECh. 10 - Prob. 85ECh. 10 - Prob. 86ECh. 10 - Prob. 87ECh. 10 - Prob. 88ECh. 10 - Top fuel dragsters and funny cars burn...Ch. 10 - Prob. 90ECh. 10 - Prob. 91ECh. 10 - Rubidium iodide has a lattice energy of-617...Ch. 10 - Prob. 93ECh. 10 - Prob. 94ECh. 10 - Use the Born-Haber cycle and data from Appendix...Ch. 10 - Prob. 96ECh. 10 - The kinetic energy of a rolling billiard ball is...Ch. 10 - A100-W light bulb is placed in a cylinder equipped...Ch. 10 - Evaporating sweat cools the body because...Ch. 10 - LP gas burns according to the exothermic reaction:...Ch. 10 - Use standard enthalpies of formation to calculate...Ch. 10 - Dry ice is solid carbon dioxide. Instead of...Ch. 10 - A 25.5-g aluminum block is warmed to 65.4 °C and...Ch. 10 - We mix 50.0 mL of ethanol (density = 0.789 g/mL)...Ch. 10 - Prob. 105ECh. 10 - Prob. 106ECh. 10 - One tablespoon of peanut butter has a mass of 16...Ch. 10 - Prob. 108ECh. 10 - Prob. 109ECh. 10 - When we burn 10.00 g of phosphorus in O2 (g) to...Ch. 10 - The H for the oxidation of S in the gas phase to...Ch. 10 - The Hfo of TiI3(s) is -328 kJ/mol; and the Ho for...Ch. 10 - A copper cube measuring 1.55 cm on edge and an...Ch. 10 - A pure gold ring and pure silver ring have a total...Ch. 10 - The reaction of Fe2O3(s) with Al(s) to form...Ch. 10 - Prob. 116ECh. 10 - Prob. 117ECh. 10 - Prob. 118ECh. 10 - Prob. 119ECh. 10 - Calculate the heat of atomization (see previous...Ch. 10 - Prob. 121ECh. 10 - Prob. 122ECh. 10 - Prob. 123ECh. 10 - Prob. 124ECh. 10 - Prob. 125ECh. 10 - Find H, E, q, and w for the freezing of water at...Ch. 10 - The heat of vaporization of water at 373 K is 40.7...Ch. 10 - Prob. 128ECh. 10 - Prob. 129ECh. 10 - Prob. 130ECh. 10 - Prob. 131ECh. 10 - Prob. 132ECh. 10 - Prob. 133ECh. 10 - Which expression describes the heat emitted in a...Ch. 10 - Prob. 135ECh. 10 - Prob. 136ECh. 10 - Prob. 137ECh. 10 - Prob. 138ECh. 10 - Prob. 139ECh. 10 - Which statement is true of a reaction in which V...Ch. 10 - Which statement is true of an endothermic...Ch. 10 - When a firecracker explodes, energy is obviously...
Knowledge Booster
Chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • Shown below is a diagram depicting the enthalpy change of a chemical reaction run at constant pressure. a Is the reaction exothermic or endothermic? b What is the sign of H? c What is the sign of q? d If the reaction does no work, what is the sign of E for this process?
    Coal is used as a fuel in some electric-generating plants. Coal is a complex material, but for simplicity we may consider it to be a form of carbon. The energy that can be derived from a fuel is sometimes compared with the enthalpy of the combustion reaction: C(s)+O2(g)CO2(g) Calculate the standard enthalpy change for this reaction at 25C. Actually, only a fraction of the heat from this reaction is available to produce electric energy. In electric generating plants, this reaction is used to generate heat for a steam engine, which turns the generator. Basically the steam engine is a type of heat engine in which steam enters the engine at high temperature (Th), work is done, and the steam then exits at a lower temperature (Tl). The maximum fraction, f, of heat available to produce useful energy depends on the difference between these temperatures (expressed in kelvins), f = (Th Tl)/Th. What is the maximum heat energy available for useful work from the combustion of 1.00 mol of C(s) to CO2(g)? (Assume the value of H calculated at 25C for the heat obtained in the generator.) It is possible to consider more efficient ways to obtain useful energy from a fuel. For example, methane can be burned in a fuel cell to generate electricity directly. The maximum useful energy obtained in these cases is the maximum work, which equals the free-energy change. Calculate the standard free-energy change for the combustion of 1.00 mol of C(s) to CO2(g). Compare this value with the maximum obtained with the heat engine described here.
    Three gas-phase reactions were run in a constant-pressure piston apparatus as shown in the following illustration. For each reaction, give the balanced reaction and predict the sign of w (the work done) for the reaction. . If just the balanced reactions were given, how could you predict the sign of w for a reaction?
    • SEE MORE QUESTIONS
    Recommended textbooks for you
  • Chemistry: The Molecular Science
    Chemistry
    ISBN:9781285199047
    Author:John W. Moore, Conrad L. Stanitski
    Publisher:Cengage Learning
    Chemistry & Chemical Reactivity
    Chemistry
    ISBN:9781133949640
    Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
    Publisher:Cengage Learning
    Chemistry & Chemical Reactivity
    Chemistry
    ISBN:9781337399074
    Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
    Publisher:Cengage Learning
  • Chemistry: Principles and Practice
    Chemistry
    ISBN:9780534420123
    Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
    Publisher:Cengage Learning
    World of Chemistry, 3rd edition
    Chemistry
    ISBN:9781133109655
    Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
    Publisher:Brooks / Cole / Cengage Learning
    Physical Chemistry
    Chemistry
    ISBN:9781133958437
    Author:Ball, David W. (david Warren), BAER, Tomas
    Publisher:Wadsworth Cengage Learning,
  • Chemistry: The Molecular Science
    Chemistry
    ISBN:9781285199047
    Author:John W. Moore, Conrad L. Stanitski
    Publisher:Cengage Learning
    Chemistry & Chemical Reactivity
    Chemistry
    ISBN:9781133949640
    Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
    Publisher:Cengage Learning
    Chemistry & Chemical Reactivity
    Chemistry
    ISBN:9781337399074
    Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
    Publisher:Cengage Learning
    Chemistry: Principles and Practice
    Chemistry
    ISBN:9780534420123
    Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
    Publisher:Cengage Learning
    World of Chemistry, 3rd edition
    Chemistry
    ISBN:9781133109655
    Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
    Publisher:Brooks / Cole / Cengage Learning
    Physical Chemistry
    Chemistry
    ISBN:9781133958437
    Author:Ball, David W. (david Warren), BAER, Tomas
    Publisher:Wadsworth Cengage Learning,
    Calorimetry Concept, Examples and Thermochemistry | How to Pass Chemistry; Author: Melissa Maribel;https://www.youtube.com/watch?v=nSh29lUGj00;License: Standard YouTube License, CC-BY