Domanda del libro di testo
For each of the equilibria in Problem 15.56, write the equi-librium constant expression for Kp and give the equation that relates Kp and Kc. (a)
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Ch.15 - Chemical Equilibrium
McMurry8th EditionChemistryISBN: 9781292336145
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TOC.tableOfContents
- 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
Capitolo 15, Problema 53
Identify the true statement about the concentrations of A and B once the reaction A ⇌ B has reached equilibrium. (a) The concentration of A equals the concentration of B. (b) The concentrations of A and B are constant. (c) The concentration of A decreases and the concentration of B increases. (d) The concentration of B decreases and the concentration of A increases.
Guida verificata passo dopo passo1
Step 1: Understand the concept of chemical equilibrium. At equilibrium, the rate of the forward reaction equals the rate of the reverse reaction, meaning the concentrations of reactants and products remain constant over time.
Step 2: Analyze each statement in the context of equilibrium. Statement (a) suggests that the concentrations of A and B are equal, which is not necessarily true at equilibrium unless the equilibrium constant dictates it.
Step 3: Evaluate statement (b). At equilibrium, the concentrations of A and B are indeed constant, as the rates of the forward and reverse reactions are equal.
Step 4: Consider statement (c). This describes a scenario where the reaction is still proceeding towards equilibrium, not a state of equilibrium itself.
Step 5: Assess statement (d). Similar to statement (c), this describes a non-equilibrium state where the reaction is still shifting towards equilibrium.
Concetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Chemical Equilibrium
Chemical equilibrium occurs in a reversible reaction when the rates of the forward and reverse reactions are equal, resulting in constant concentrations of reactants and products. At this point, the system is in a dynamic state where the concentrations do not change over time, even though both reactions continue to occur.
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Percorso guidato
04:21
Chemical Equilibrium Concepts
Concentration in Equilibrium
At equilibrium, the concentrations of reactants and products remain constant, but they do not have to be equal. This means that while the amounts of A and B may differ, their concentrations will stabilize at specific values determined by the reaction conditions and the equilibrium constant.
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Percorso guidato
02:35Thermal Equilibrium
Le Chatelier's Principle
Le Chatelier's Principle states that if a system at equilibrium is subjected to a change in concentration, temperature, or pressure, the system will adjust to counteract that change and restore a new equilibrium. This principle helps predict how the concentrations of A and B will respond to external changes, but it does not imply that their concentrations will be equal.
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Percorso guidato
07:32Le Chatelier's Principle
Pratica correlata
Domanda del libro di testo
Identify the true statement about the rate of the forward and reverse reaction once a reaction has reached equilibrium. (a) The rate of the forward reaction and the reverse reaction is zero. (b) The rate of the forward reaction is greater than the rate of the reverse reaction.
(c) The rate of the reverse reaction is greater than the rate of the forward reaction.
(d) The rate of the forward reaction is equal to the rate of the reverse reaction.
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Domanda del libro di testo
The following pictures represent the initial and equilibrium states for the exothermic decomposition of gaseous A mol- ecules (red) to give gaseous B molecules (blue). (a) Write a balanced chemical equation for the reaction.
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Domanda del libro di testo
The following pictures represent the initial and equilibrium states for the exothermic reaction of solid A (red) with gas- eous B2 (blue) to give gaseous AB. (a) Write a balanced chemical equation for the reaction.
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