Chemistry, Books a la Carte Plus Mastering Chemistry with eText -- Access Card Package (7th Edition)
7th Edition
ISBN: 9780133900811
Author: John E. McMurry, Robert C. Fay, Jill Kirsten Robinson
Publisher: PEARSON
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Chapter 9, Problem 9.125SP
Suppose that a reaction has
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Chapter 9 Solutions
Chemistry, Books a la Carte Plus Mastering Chemistry with eText -- Access Card Package (7th Edition)
Ch. 9 - Prob. 9.1PCh. 9 - Conceptual APPLY 9.2 How much work is done in...Ch. 9 - PRACTICE 9.3 The reaction between hydrogen and...Ch. 9 - Conceptual APPLY 9.4 The following reaction has E...Ch. 9 - PRACTICE 9.5 Use the following t her mo chemical...Ch. 9 - APPLY 9.6 Approximately, 1.8106 kJ of energy is...Ch. 9 - PRACTICE 9.7 Indicate the direction of heat...Ch. 9 - APPLY 9.8 Instant hot packs and cold packs contain...Ch. 9 - PRACTICE 9.9 What is the specific heat of lead in...Ch. 9 - APPLY 9.10 Calculate the heat capacity (C) of a...
Ch. 9 - PRACTICE 9.11 When 25.0 mL of 1.0 M H2SO4 is added...Ch. 9 - Prob. 9.12ACh. 9 - Prob. 9.13PCh. 9 - Prob. 9.14ACh. 9 - Prob. 9.15PCh. 9 - Prob. 9.16ACh. 9 - Prob. 9.17PCh. 9 - APPLY 9.18 Benzene (C6H6) has two resonance...Ch. 9 - Prob. 9.19PCh. 9 - Prob. 9.20ACh. 9 - Prob. 9.21PCh. 9 - Prob. 9.22ACh. 9 - Prob. 9.23PCh. 9 - Prob. 9.24ACh. 9 - Prob. 9.25PCh. 9 - Prob. 9.26PCh. 9 - Prob. 9.27PCh. 9 - Prob. 9.28PCh. 9 - Prob. 9.29PCh. 9 - A piece of dry ice (solid CO2) is placed inside a...Ch. 9 - Imagine a reaction that results in a change in...Ch. 9 - 9.32 Redraw the following diagram to represent the...Ch. 9 - 9.33 A reaction is carried out in a cylinder...Ch. 9 - Prob. 9.34CPCh. 9 - Prob. 9.35CPCh. 9 - Prob. 9.36CPCh. 9 - Prob. 9.37CPCh. 9 - Prob. 9.38CPCh. 9 - Prob. 9.39CPCh. 9 - What is the difference between heat and...Ch. 9 - What is internal energy?Ch. 9 - Prob. 9.42SPCh. 9 - Prob. 9.43SPCh. 9 - Which of the following are state functions, and...Ch. 9 - Prob. 9.45SPCh. 9 - Calculate the work done in joules by a chemical...Ch. 9 - The addition of H2 to C=C double bonds is an...Ch. 9 - Prob. 9.48SPCh. 9 - Prob. 9.49SPCh. 9 - 9.50 A reaction inside a cylindrical container...Ch. 9 - At a constant pressure of 0.905 atm, a chemical...Ch. 9 - Prob. 9.52SPCh. 9 - Prob. 9.53SPCh. 9 - Prob. 9.54SPCh. 9 - Prob. 9.55SPCh. 9 - 9.56 The explosion of 2.00 mol of solid...Ch. 9 - Prob. 9.57SPCh. 9 - Prob. 9.58SPCh. 9 - Assume that a particular reaction evolves 244 kJ...Ch. 9 - Prob. 9.60SPCh. 9 - A reaction takes place at a constant pressure of...Ch. 9 - Prob. 9.62SPCh. 9 - Indicate the direction of heat transfer between...Ch. 9 - Prob. 9.64SPCh. 9 - Prob. 9.65SPCh. 9 - Aluminum metal reacts with chlorine with a...Ch. 9 - Prob. 9.67SPCh. 9 - 9,68 How much heat in kilojoules is evolved or...Ch. 9 - 9.69 Nitromethane (CH3NO2), sometimes used as a...Ch. 9 - How much heat in kilojoules is evolved or absorbed...Ch. 9 - How much heat in kilojoules is evolved or absorbed...Ch. 9 - What is the difference between heat capacity and...Ch. 9 - Does a measurement carried out in a bomb...Ch. 9 - Sodium metal is sometimes used as a cooling agent...Ch. 9 - Titanium metal is used as a structural material in...Ch. 9 - Assuming that Coca Cola has the same specific heat...Ch. 9 - Calculate the amount of heat required to raise the...Ch. 9 - Instant cold packs used to treat athletic injuries...Ch. 9 - 9.79 Instant hot packs contain a solid and a pouch...Ch. 9 - Prob. 9.80SPCh. 9 - Prob. 9.81SPCh. 9 - 9.82 When 0.187 g of benzene, C6H6 is burned in a...Ch. 9 - Prob. 9.83SPCh. 9 - 9.84 How is the standard state of an element...Ch. 9 - Prob. 9.85SPCh. 9 - Prob. 9.86SPCh. 9 - Prob. 9.87SPCh. 9 - Prob. 9.88SPCh. 9 - Prob. 9.89SPCh. 9 - Prob. 9.90SPCh. 9 - Prob. 9.91SPCh. 9 - Write balanced equations for the formation of the...Ch. 9 - Prob. 9.93SPCh. 9 - Prob. 9.94SPCh. 9 - Prob. 9.95SPCh. 9 - Prob. 9.96SPCh. 9 - Prob. 9.97SPCh. 9 - Prob. 9.98SPCh. 9 - Prob. 9.99SPCh. 9 - Prob. 9.100SPCh. 9 - Prob. 9.101SPCh. 9 - Prob. 9.102SPCh. 9 - Prob. 9.103SPCh. 9 - Prob. 9.104SPCh. 9 - Prob. 9.105SPCh. 9 - Prob. 9.106SPCh. 9 - Prob. 9.107SPCh. 9 - Use the average bond dissociation energies in...Ch. 9 - 9.109 Use the bond dissociation energies in Table...Ch. 9 - Prob. 9.110SPCh. 9 - Calculate an approximate heat of combustion for...Ch. 9 - Prob. 9.112SPCh. 9 - Prob. 9.113SPCh. 9 - Prob. 9.114SPCh. 9 - Prob. 9.115SPCh. 9 - Prob. 9.116SPCh. 9 - Prob. 9.117SPCh. 9 - Prob. 9.118SPCh. 9 - Prob. 9.119SPCh. 9 - One of the steps in the cracking of petroleum into...Ch. 9 - The commercial production of 1,2-dichloro ethane,...Ch. 9 - Prob. 9.122SPCh. 9 - Prob. 9.123SPCh. 9 - Suppose that a reaction has H = -33 kJ and S = -58...Ch. 9 - Suppose that a reaction has H = +41 kJ and S =...Ch. 9 - Prob. 9.126SPCh. 9 - Vinyl chloride (H2C=CHCl), the starting material...Ch. 9 - Ethyl alcohol has Hfusion = 5.02 kJ/mol and melts...Ch. 9 - Chloroform has Hvaporization = 29.2 kJ/mol and...Ch. 9 - When a sample of a hydrocarbon fuel is ignited and...Ch. 9 - Used in welding metals, the reaction of acetylene...Ch. 9 - Ethyl chloride (C2H5Cl), a substance used as a...Ch. 9 - When 1.50 g of magnesium metal is allowed to react...Ch. 9 - Prob. 9.134CPCh. 9 - Find H in kilojoules for the reaction of nitric...Ch. 9 - The boiling point of a substance is defined as the...Ch. 9 - Prob. 9.137CPCh. 9 - Prob. 9.138CPCh. 9 - Prob. 9.139CPCh. 9 - Isooctane, C8H18, is the component of gasoline...Ch. 9 - We said in Section 9.1 that the potential energy...Ch. 9 - For a process to be spontaneous, the total entropy...Ch. 9 - Set up a Hess's law cycle, and use the following...Ch. 9 - A 110.0 g piece of molybdenum metal is heated to...Ch. 9 - Given 400.0 g of hot tea at 80.0 °C, what mass of...Ch. 9 - Citric acid has three dissociable hydrogens. When...Ch. 9 - Assume that 100.0 mL of 0.200 M CsOH and 50.0 mL...Ch. 9 - Imagine that you dissolve 10.0 g of a mixture of...Ch. 9 - Consider the reaction: 4CO(g)+2NO2(g)4CO2(g)+N2(g)...Ch. 9 - The reaction S8(g)4S2(g) has H = +237 kJ (a) The...Ch. 9 - Prob. 9.151MPCh. 9 - Prob. 9.152MPCh. 9 - (a) Write a balanced equation for the reaction of...Ch. 9 - Prob. 9.154MPCh. 9 - Prob. 9.155MP
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- Define the following: a. spontaneous process b. entropy c. positional probability d. system e. surroundings f. universearrow_forwardEnthalpy changes often help predict whether or not a process will be spontaneous. What type of reaction is more likely to be spontaneous: an exothermic or an endothermic one? Provide two examples that support your assertion and one counterexample.arrow_forwardHow is the sign of q, heat, defined? How does it relate to the total energy of the system?arrow_forward
- How does the second law of thermodynamics explain a spontaneous change in a system that becomes more ordered when that process is exothermic?arrow_forwardWhat happens to the entropy of the universe during a spontaneous process?arrow_forwardFor the reaction NO(g)+NO2(g)N2O3(g) , use tabulated thermodynamic data to calculate H and S. Then use those values to answer the following questions. (a) Is this reaction spontaneous at 25°C? Explain your answer. (b) If the reaction is not spontaneous at 25°C, will it become spontaneous at higher temperatures or lower temperatures? (c) To show that your prediction is accurate, choose a temperature that corresponds to your prediction in part (b) and calculate G . (Assume that both enthalpy and entropy are independent of temperature.)arrow_forward
- For each of the following processes, identify the systemand the surroundings. Identify those processes that arespontaneous. For each spontaneous process, identify theconstraint that has been removed to enable the process to occur: Ammonium nitrate dissolves in water. Hydrogen and oxygen explode in a closed bomb. A rubber band is rapidly extended by a hangingweight. The gas in a chamber is slowly compressed by aweighted piston. A glass shatters on the floor.arrow_forward2. Which of the following is true for a spontaneous process but not for a nonspontaneous process? Energy in the universe is concentrated conserved dispersed not conservedarrow_forwardWhat is meant by the standard free-energy change G for a reaction? What is meant by the standard free energy of formation Gf of a substance?arrow_forward
- What is the second law of thermodynamics? For any process, there are four possible sign combinations for Ssys and Ssurr. Which sign combination(s) always give a spontaneous process? Which sign combination(s) always give a non-spontaneous process? Which sign combination(s) may or may not give a spontaneous process?arrow_forwardWhat is entropy? Why is entropy important?arrow_forwardThe combustion of acetylene, C2H2, is a spontaneous reaction given by the equation 2C2H2(g)+5O2(g)4CO2(g)+2H2O(l) As expected for a combustion, the reaction is exothermic. What is the sign of H? What do you expect for the sign of S? Explain the spontaneity of the reaction in terms of the enthalpy and entropy changes.arrow_forward
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