Chemistry
12th Edition
ISBN: 9780078021510
Author: Raymond Chang Dr., Kenneth Goldsby Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 13, Problem 13.65QP
The diagram shown here represents a two-step mechanism. (a) Write the equation for each step and the overall reaction. (b) Identify the intermediate and catalyst. The color codes are A = green and B = red.
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Which of the following is always true about a unimolecular reaction?
(A) The activation energy is twice that of a unimolecular reaction.
(B) The rate of the reaction doubles when the concentration of the reactants doubles.
(C) If the temperature is doubled, the reaction rate doubles.
(D) A larger molecule breaks down into two smaller molecules.
(E) Two particles must collide together for the reaction to occur.
Indicate whether each statement is true or false.
(a) If you compare two reactions with similar collision factors, the one with the larger activation energy will be faster.
(b) A reaction that has a small rate constant must have a small frequency factor.
(c) Increasing the reaction temperature increases the fraction of successful collisions between reactants.
Indicate whether each statement is true or false.(a) If you measure the rate constant for a reaction at differenttemperatures, you can calculate the overall enthalpychange for the reaction.(b) Exothermic reactions are faster than endothermicreactions.(c) If you double the temperature for a reaction, you cutthe activation energy in half.
Chapter 13 Solutions
Chemistry
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Ch. 13.3 - Consider the reaction A products. The half-life...Ch. 13.4 - The second-order rate constant for the...Ch. 13.4 - The first-order rate constant for the reaction of...Ch. 13.4 - Prob. 1RCCh. 13.5 - The reaction between NO2 and CO to produce NO and...Ch. 13.5 - The rate law for the reaction H2 + 2IBr I2 + 2HBr...Ch. 13.6 - Which of the following is false regarding...Ch. 13 - What is meant by the rate of a chemical reaction?...Ch. 13 - Distinguish between average rate and instantaneous...Ch. 13 - Prob. 13.3QPCh. 13 - Can you suggest two reactions that are very slow...Ch. 13 - Write the reaction rate expressions for the...Ch. 13 - Write the reaction rate expressions for the...Ch. 13 - Consider the reaction 2NO(g)+O2(g)2NO2(g) Suppose...Ch. 13 - Consider the reaction N2(g)+3H2(g)2NH3(g) Suppose...Ch. 13 - Explain what is meant by the rate law of a...Ch. 13 - What are the units for the rate constants of...Ch. 13 - Consider the zero-order reaction: A product. (a)...Ch. 13 - On which of the following properties does the rate...Ch. 13 - The rate law for the reaction...Ch. 13 - Use the data in Table 13.2 to calculate the rate...Ch. 13 - Consider the reaction A+Bproducts From the...Ch. 13 - Consider the reaction X+YZ From the following...Ch. 13 - Determine the overall orders of the reactions to...Ch. 13 - Consider the reaction AB The rate of the reaction...Ch. 13 - Cyclobutane decomposes to ethylene according to...Ch. 13 - The following gas-phase reaction was studied at...Ch. 13 - Prob. 13.21QPCh. 13 - Prob. 13.22QPCh. 13 - Prob. 13.23QPCh. 13 - Prob. 13.24QPCh. 13 - What is the half-life of a compound if 75 percent...Ch. 13 - The thermal decomposition of phosphine (PH3) into...Ch. 13 - The rate constant for the second-order reaction...Ch. 13 - The rate constant for the second-order reaction...Ch. 13 - Consider the first-order reaction A B shown here....Ch. 13 - The reaction X Y shown here follows first-order...Ch. 13 - Define activation energy. What role does...Ch. 13 - Prob. 13.32QPCh. 13 - Prob. 13.33QPCh. 13 - Prob. 13.34QPCh. 13 - Sketch a potential energy versus reaction progress...Ch. 13 - Prob. 13.36QPCh. 13 - The diagram in (a) shows the plots of ln k versus...Ch. 13 - Given the same reactant concentrations, the...Ch. 13 - Some reactions are described as parallel in that...Ch. 13 - Variation of the rate constant with temperature...Ch. 13 - For the reaction NO(g)+O3(g)NO2(g)+O2(g) the...Ch. 13 - The rate constant of a first-order reaction is...Ch. 13 - The rate constants of some reactions double with...Ch. 13 - Prob. 13.44QPCh. 13 - Consider the second-order reaction...Ch. 13 - The rate at which tree crickets chirp is 2.0 102...Ch. 13 - Prob. 13.47QPCh. 13 - What do we mean by the mechanism of a reaction?...Ch. 13 - Classify each of the following elementary steps as...Ch. 13 - Reactions can be classified as unimolecular,...Ch. 13 - Determine the molecularity and write the rate law...Ch. 13 - What is the rate-determining step of a reaction?...Ch. 13 - The equation for the combustion of ethane (C2H6)...Ch. 13 - Specify which of the following species cannot be...Ch. 13 - The rate law for the reaction...Ch. 13 - For the reaction X2 + Y + Z XY + XZ it is found...Ch. 13 - Prob. 13.57QPCh. 13 - The rate law for the reaction...Ch. 13 - How does a catalyst increase the rate of a...Ch. 13 - What are the characteristics of a catalyst?Ch. 13 - A certain reaction is known to proceed slowly at...Ch. 13 - Distinguish between homogeneous catalysis and...Ch. 13 - Prob. 13.63QPCh. 13 - The concentrations of enzymes in cells are usually...Ch. 13 - The diagram shown here represents a two-step...Ch. 13 - Consider the following mechanism for the...Ch. 13 - The following diagrams represent the progress of...Ch. 13 - Prob. 13.68QPCh. 13 - Prob. 13.69QPCh. 13 - List four factors that influence the rate of a...Ch. 13 - Prob. 13.71QPCh. 13 - Prob. 13.72QPCh. 13 - Prob. 13.73QPCh. 13 - The following data were collected for the reaction...Ch. 13 - Prob. 13.75QPCh. 13 - The rate of the reaction...Ch. 13 - Which of the following equations best describes...Ch. 13 - Prob. 13.78QPCh. 13 - The bromination of acetone is acid-catalyzed:...Ch. 13 - The decomposition of N2O to N2 and O2 is a...Ch. 13 - The reaction S2O82+2I2SO42+I2 proceeds slowly in...Ch. 13 - Prob. 13.82QPCh. 13 - The integrated rate law for the zero-order...Ch. 13 - Prob. 13.84QPCh. 13 - Prob. 13.85QPCh. 13 - The diagrams here represent the reaction A + B C...Ch. 13 - Prob. 13.87QPCh. 13 - The rate law for the reaction 2NO2 (g) N2O4(g) is...Ch. 13 - Prob. 13.89QPCh. 13 - Prob. 13.90QPCh. 13 - Briefly comment on the effect of a catalyst on...Ch. 13 - When 6 g of granulated Zn is added to a solution...Ch. 13 - Prob. 13.93QPCh. 13 - A certain first-order reaction is 35.5 percent...Ch. 13 - The decomposition of dinitrogen pentoxide has been...Ch. 13 - The thermal decomposition of N2O5 obeys...Ch. 13 - Prob. 13.97QPCh. 13 - Prob. 13.99QPCh. 13 - Prob. 13.100QPCh. 13 - Prob. 13.101QPCh. 13 - Chlorine oxide (ClO), which plays an important...Ch. 13 - Prob. 13.103QPCh. 13 - Prob. 13.104QPCh. 13 - Prob. 13.105QPCh. 13 - Prob. 13.106QPCh. 13 - Prob. 13.107QPCh. 13 - Prob. 13.108QPCh. 13 - Prob. 13.109QPCh. 13 - Thallium(I) is oxidized by cerium(IV) as follows:...Ch. 13 - Prob. 13.111QPCh. 13 - Prob. 13.112QPCh. 13 - Prob. 13.113QPCh. 13 - Prob. 13.114QPCh. 13 - Strontium-90, a radioactive isotope, is a major...Ch. 13 - Prob. 13.117QPCh. 13 - Consider the following potential energy profile...Ch. 13 - Prob. 13.119QPCh. 13 - Prob. 13.120QPCh. 13 - Prob. 13.121QPCh. 13 - Prob. 13.122QPCh. 13 - Prob. 13.123QPCh. 13 - Prob. 13.124QPCh. 13 - Polyethylene is used in many items, including...Ch. 13 - Prob. 13.126QPCh. 13 - Prob. 13.127QPCh. 13 - Prob. 13.128QPCh. 13 - Prob. 13.129QPCh. 13 - Prob. 13.130QPCh. 13 - Prob. 13.131QPCh. 13 - A gas mixture containing CH3 fragments, C2H6...Ch. 13 - Prob. 13.133QPCh. 13 - The activation energy (Ea) for the reaction...Ch. 13 - The rate constants for the first-order...Ch. 13 - Prob. 13.136QPCh. 13 - An instructor performed a lecture demonstration of...Ch. 13 - Prob. 13.138IMECh. 13 - Is the rate constant (k) of a reaction more...Ch. 13 - Prob. 13.140IMECh. 13 - Prob. 13.141IMECh. 13 - Prob. 13.142IME
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