Domanda del libro di testo
Given the following diagrams at 𝑡=0 min and 𝑡=30 min, b. After four half-life periods for a first-order reaction, what fraction of reactant remains? [Section 14.3]
Ch.14 - Chemical Kinetics
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement146
- Ch.2 - Atoms, Molecules, and Ions200
- Ch.3 - Chemical Reactions and Reaction Stoichiometry176
- Ch.4 - Reactions in Aqueous Solution155
- Ch.5 - Thermochemistry126
- Ch.6 - Electronic Structure of Atoms131
- Ch.7 - Periodic Properties of the Elements126
- Ch.8 - Basic Concepts of Chemical Bonding123
- Ch.9 - Molecular Geometry and Bonding Theories143
- Ch.10 - Gases147
- Ch.11 - Liquids and Intermolecular Forces91
- Ch.12 - Solids and Modern Materials122
- Ch.13 - Properties of Solutions126
- Ch.14 - Chemical Kinetics174
- Ch.15 - Chemical Equilibrium101
- Ch.16 - Acid-Base Equilibria139
- Ch.17 - Additional Aspects of Aqueous Equilibria146
- Ch.18 - Chemistry of the Environment72
- Ch.19 - Chemical Thermodynamics129
- Ch.20 - Electrochemistry142
- Ch.21 - Nuclear Chemistry101
- Ch.22 - Chemistry of the Nonmetals68
- Ch.23 - Transition Metals and Coordination Chemistry66
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry10
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970Non è quello che usi tu?Cambia libro di testo
Capitolo 14, Problema 8a
Which of the following linear plots do you expect for a reaction A⟶products if the kinetics are a. zero order, [Section 14.3]
Guida verificata passo dopo passo1
Identify the order of the reaction: The problem states that the reaction is zero order.
Recall the integrated rate law for a zero-order reaction: [A] = [A]_0 - kt, where [A] is the concentration of A at time t, [A]_0 is the initial concentration, k is the rate constant, and t is time.
Determine the linear plot: For a zero-order reaction, plotting [A] versus time (t) will yield a straight line.
Understand the slope and intercept: The slope of the line is -k, and the y-intercept is [A]_0.
Conclude the expected plot: Therefore, the expected linear plot for a zero-order reaction is [A] versus time (t).
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
1mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Zero-Order Kinetics
In zero-order kinetics, the rate of reaction is constant and independent of the concentration of the reactant. This means that the reaction proceeds at a steady rate until the reactant is depleted. The rate law for a zero-order reaction can be expressed as Rate = k, where k is the rate constant.
Video consigliato:
Percorso guidato
02:44
Zero-Order Reactions
Integrated Rate Law
The integrated rate law for a zero-order reaction relates the concentration of the reactant to time. It is given by the equation [A] = [A]₀ - kt, where [A] is the concentration at time t, [A]₀ is the initial concentration, and k is the rate constant. This linear relationship indicates that a plot of [A] versus time will yield a straight line.
Video consigliato:
Percorso guidato
01:52Rate Law Fundamentals
Graphical Representation of Reaction Order
For zero-order reactions, plotting the concentration of the reactant [A] against time results in a linear graph with a negative slope. The slope of this line is equal to -k, providing a visual representation of the reaction's kinetics. Understanding this graphical representation is crucial for identifying the order of a reaction based on experimental data.
Video consigliato:
Percorso guidato
02:44Zero-Order Reactions
Pratica correlata
Domanda del libro di testo
The accompanying graph shows plots of ln k versus 1/𝑇 for two different reactions. The plots have been extrapolated to the y-intercepts. Which reaction (red or blue) has b. the larger value for the frequency factor, A? [Section 14.4]
Domanda del libro di testo
Suppose that for the reaction K+L⟶M, you monitor the production of M over time, and then plot the following graph from your data: b. Is the reaction completed at 𝑡=15 min?
3
views
Domanda del libro di testo
The following diagrams represent mixtures of NO(g) and O2(𝑔). These two substances react as follows:
2 NO(𝑔)+O2(𝑔)⟶2 NO2(𝑔)
It has been determined experimentally that the rate is second order in NO and first order in O2. Based on this fact, which of the following mixtures will have the fastest initial rate? [Section 14.2]
1
views
Domanda del libro di testo
The accompanying graph shows plots of ln k versus 1>T for two different reactions. The plots have been extrapolated to the y-intercepts. Which reaction (red or blue) has (a) the larger value for Ea,
706
views