Textbook Question
Nitrosyl bromide decomposes at 10 °C.
NOBr1g2S NO1g2 + 1>2 Br21g2
Use the following kinetic data to determine the order of the
reaction and the value of the rate constant for consumption
of NOBr.
Ch.14 - Chemical Kinetics
McMurry8th EditionChemistryISBN: 9781292336145
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Table of contents
- Ch.1 - Chemical Tools: Experimentation & Measurement170
- Ch.2 - Atoms, Molecules & Ions160
- Ch.3 - Mass Relationships in Chemical Reactions169
- Ch.4 - Reactions in Aqueous Solution199
- Ch.5 - Periodicity & Electronic Structure of Atoms102
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory92
- Ch.7 - Covalent Bonding and Electron-Dot Structures61
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure59
- Ch.9 - Thermochemistry: Chemical Energy122
- Ch.10 - Gases: Their Properties & Behavior155
- Ch.11 - Liquids & Phase Changes54
- Ch.12 - Solids and Solid-State Materials73
- Ch.13 - Solutions & Their Properties120
- Ch.14 - Chemical Kinetics98
- Ch.15 - Chemical Equilibrium125
- Ch.16 - Aqueous Equilibria: Acids & Bases110
- Ch.17 - Applications of Aqueous Equilibria147
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium86
- Ch.19 - Electrochemistry154
- Ch.20 - Nuclear Chemistry96
- Ch.21 - Transition Elements and Coordination Chemistry156
- Ch.22 - The Main Group Elements187
- Ch.23 - Organic and Biological Chemistry51
Chapter 14, Problem 83b
Consider the following concentration–time data for the decomposition reaction AB → A + B.
(b) What is the molarity of AB after a reaction time of 192 min?
Verified step by step guidance1
Determine the order of the reaction by analyzing the concentration-time data.
Use the appropriate integrated rate law based on the determined order of the reaction.
Identify the initial concentration of AB from the data provided.
Substitute the initial concentration, rate constant, and time (192 min) into the integrated rate law equation.
Solve the equation for the concentration of AB at 192 min.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Reaction Rate
The reaction rate refers to the speed at which reactants are converted into products in a chemical reaction. It can be expressed in terms of the change in concentration of a reactant or product over time. Understanding the reaction rate is crucial for determining how the concentration of AB changes over the specified time period.
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Average Rate of Reaction
Molarity
Molarity is a measure of concentration defined as the number of moles of solute per liter of solution. It is commonly used in chemistry to express the concentration of reactants and products in a reaction. To find the molarity of AB after a certain time, one must calculate the remaining amount of AB and divide it by the total volume of the solution.
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01:13Molarity
Stoichiometry
Stoichiometry involves the calculation of reactants and products in chemical reactions based on balanced chemical equations. It allows chemists to predict the amounts of substances consumed and produced. In this context, stoichiometry is essential for determining how the concentration of AB decreases as it decomposes into A and B over time.
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Related Practice
Textbook Question
Why don't all collisions between reactant molecules lead to
a chemical reaction?
Textbook Question
Trans-cycloheptene 1C7H122, a strained cyclic hydrocarbon,
converts to cis-cycloheptene at low temperatures. This
molecular rearrangement is a second-order process with a
rate constant of 0.030 M-1 s-1 at 60 °C. If the initial concentration
of trans-cycloheptene is 0.035 M:
(c) What is the half-life of trans-cycloheptene at an initial
concentration of 0.075 M?
Textbook Question
Consider the following concentration–time data for the decomposition reaction AB → A + B.
(a) Determine the order of the reaction and the value of the rate constant.
Textbook Question
Two reactions have the same activation energy, but their
rates at the same temperature differ by a factor of 10.
Explain.