LCPO CHEMISTRY W/MODIFIED MASTERING
LCPO CHEMISTRY W/MODIFIED MASTERING
8th Edition
ISBN: 9780135214756
Author: Robinson
Publisher: PEARSON
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Chapter 14, Problem 14.93SP
Interpretation Introduction

Interpretation:

The point on the profile that representsthe potential energy of the transition state for the first step, second step and the intermediate H2O2+I in the reaction are to be determined.

Concept introduction:

Potential energy diagram is the graphical representation of the energy changes that takes place during a chemical reaction.

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2. Select the energy profile templates below (A or B) that correctly represents the enthalpy change calculated for the decomposition of ammonium nitrate and label it showing the reactants, products, change in enthalpy for the reaction, AHRXn and the activation energy, Ea. Potential Energy Reactants A Reaction Progress->> Products ΔΗ Potential Energy Reactants ΔΗ B Products Reaction Progress-> 3. Use your understanding of reaction kinetics and collision theory to explain why an increase in temperature causes an increase in reaction rate. 4. Evaluate the changes in physical state that occur during the decomposition of ammonium nitrate and predict the sign on AS for the reaction. 5. Use the standard entropies, S° to determine the AS (in J K-¹ mol¹ ) for the reaction. Does the sign on AS match your prediction?
Answer the following True or False. For similar reactions, the reaction with the largest value of k will be faster. F F ● ● A In general, the more concentrated the reactants are, the faster the reaction goes ● A reaction which has a rate law Rate = K[A]²[B] is third order overall. • ● A catalyst makes a reaction go faster by lowering the energy of the products. A In general, the higher the temperature, the faster the reaction goes. A/
A2(g) + B2(g) →2 AB(g) The activation energy (Ea) in the forward direction is +143 kJ. The activation energy (Ea) for the reverse direction is 75 kJ. Draw a properly labelled potential energy diagram for the forward direction. Include ΔrH, axis, reactants and products, activation energy and activated complex. Is this reaction endothermic or exothermic?

Chapter 14 Solutions

LCPO CHEMISTRY W/MODIFIED MASTERING

Ch. 14 - Prob. 14.11PCh. 14 - Prob. 14.12ACh. 14 - Prob. 14.13PCh. 14 - Prob. 14.14ACh. 14 - Consider the first-order decomposition of H2O2...Ch. 14 - Prob. 14.16ACh. 14 - Hydrogen iodide gas decomposes at 410 °C:...Ch. 14 - Prob. 14.18ACh. 14 - Thereaction NO2(g)+CO(g)NO(g)+CO2(g) occurs in one...Ch. 14 - Prob. 14.20ACh. 14 - Prob. 14.21PCh. 14 - Apply 13.22 The rate of the reaction...Ch. 14 - Prob. 14.23PCh. 14 - Prob. 14.24ACh. 14 - Prob. 14.25PCh. 14 - Prob. 14.26ACh. 14 - Prob. 14.27PCh. 14 - Prob. 14.28ACh. 14 - The following mechanism has been proposed for the...Ch. 14 - Prob. 14.30ACh. 14 - Prob. 14.31PCh. 14 - Draw a potential energy diagram for the mechanism...Ch. 14 - Prob. 14.33PCh. 14 - Given the mechanism for an enzyme-catalyzed...Ch. 14 - Prob. 14.35PCh. 14 - Prob. 14.36PCh. 14 - At high substrate concentrations, the rate...Ch. 14 - Chymotrypsin is a digestive enzyme component of...Ch. 14 - Prob. 14.39CPCh. 14 - Prob. 14.40CPCh. 14 - Prob. 14.41CPCh. 14 - Prob. 14.42CPCh. 14 - Prob. 14.43CPCh. 14 - Prob. 14.44CPCh. 14 - Prob. 14.45CPCh. 14 - Prob. 14.46CPCh. 14 - Prob. 14.47CPCh. 14 - Prob. 14.48CPCh. 14 - Prob. 14.49CPCh. 14 - Use the data in Table 13.1 to calculate the...Ch. 14 - 13.50 Use the data in Table 13.1 to calculate the...Ch. 14 - Prob. 14.52SPCh. 14 - Prob. 14.53SPCh. 14 - From the plot of concentrationtime data in Figure...Ch. 14 - Prob. 14.55SPCh. 14 - Prob. 14.56SPCh. 14 - Prob. 14.57SPCh. 14 - Prob. 14.58SPCh. 14 - Prob. 14.59SPCh. 14 - Prob. 14.60SPCh. 14 - Prob. 14.61SPCh. 14 - Prob. 14.62SPCh. 14 - Prob. 14.63SPCh. 14 - Prob. 14.64SPCh. 14 - Prob. 14.65SPCh. 14 - Prob. 14.66SPCh. 14 - Prob. 14.67SPCh. 14 - The oxidation of iodide ion by hydrogen peroxide...Ch. 14 - Prob. 14.69SPCh. 14 - At 500 °C, cyclopropane (C3H6) rearranges to...Ch. 14 - The rearrangement of methyl isonitrile (CH3NC) to...Ch. 14 - What is the half-life (in minutes) of the reaction...Ch. 14 - Prob. 14.73SPCh. 14 - Prob. 14.74SPCh. 14 - Hydrogen iodide decomposes slowly to H2 and I2 at...Ch. 14 - What is the half-life (in minutes) of the reaction...Ch. 14 - Prob. 14.77SPCh. 14 - At 25 °C, the half-life of a certain first-order...Ch. 14 - The decomposition of N2O5 is a first-order...Ch. 14 - Prob. 14.80SPCh. 14 - Prob. 14.81SPCh. 14 - Prob. 14.82SPCh. 14 - Consider the following concentration-time data for...Ch. 14 - Trans-cycloheptene (C7H12), a strained cyclic...Ch. 14 - Thelight-stimulatedconversionof 11-cis-retinalto...Ch. 14 - Why don't all collisions between reactant...Ch. 14 - Prob. 14.87SPCh. 14 - Prob. 14.88SPCh. 14 - Prob. 14.89SPCh. 14 - The values of Ea=183 kJ/mol and E=9 kJ/mol have...Ch. 14 - Prob. 14.91SPCh. 14 - Consider three reactions with different values of...Ch. 14 - Prob. 14.93SPCh. 14 - Rate constants for the reaction...Ch. 14 - Prob. 14.95SPCh. 14 - Prob. 14.96SPCh. 14 - Prob. 14.97SPCh. 14 - If the rate of a reaction increases by a factor of...Ch. 14 - Prob. 14.99SPCh. 14 - Prob. 14.100SPCh. 14 - Rate constants for the reaction...Ch. 14 - Prob. 14.102SPCh. 14 - Poly(ethylene terephthalate) is a synthetic...Ch. 14 - Prob. 14.104SPCh. 14 - Prob. 14.105SPCh. 14 - Prob. 14.106SPCh. 14 - The following mechanism has been proposed for the...Ch. 14 - Prob. 14.108SPCh. 14 - Prob. 14.109SPCh. 14 - The thermal decomposition of nitryl chloride,...Ch. 14 - The substitution reactions of molybdenum...Ch. 14 - The reaction 2NO2(g)+F2(g)2NO2F(g) has a second...Ch. 14 - The decomposition of ozone in the upper atmosphere...Ch. 14 - Prob. 14.114SPCh. 14 - The following mechanism has been proposed for the...Ch. 14 - Prob. 14.116SPCh. 14 - Prob. 14.117SPCh. 14 - Prob. 14.118SPCh. 14 - Prob. 14.119SPCh. 14 - Prob. 14.120SPCh. 14 - Prob. 14.121SPCh. 14 - Prob. 14.122SPCh. 14 - Prob. 14.123SPCh. 14 - Consider the reaction 2NO(g)+O2(g)2NO2(g) . The...Ch. 14 - Concentration-time data for the conversion of A...Ch. 14 - Prob. 14.126MPCh. 14 - Prob. 14.127MPCh. 14 - Prob. 14.128MPCh. 14 - Prob. 14.129MPCh. 14 - Prob. 14.130MPCh. 14 - Prob. 14.131MPCh. 14 - Prob. 14.132MPCh. 14 - Prob. 14.133MPCh. 14 - Prob. 14.134MPCh. 14 - Polytetrafluoroethylene (Teflon) decomposes when...Ch. 14 - The reaction A is first order in the reactant A...Ch. 14 - Prob. 14.137MPCh. 14 - A 1.50 L sample of gaseous HI having a density of...Ch. 14 - The rate constant for the decomposition of gaseous...Ch. 14 - The rate constant for the first-order...Ch. 14 - Prob. 14.141MPCh. 14 - Prob. 14.142MPCh. 14 - At 791 K and relatively low pressures, the...
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