Domanda del libro di testo
For each of the following gas-phase reactions, indicate how the rate of disappearance of each reactant is related to the rate of appearance of each product:
(d) C2H5NH2(g) → C2H4(g) + NH3(g)
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Ch.14 - Chemical Kinetics
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Capitolo 14, Problema 24
For each of the following gas-phase reactions, write the rate expression in terms of the appearance of each product and disappearance of each reactant:
(a) 2 H2O(g) → 2 H2(g) + O2(g)
(b) 2 SO2(g) + O2(g) → 2 SO3(g)
(c) 2 NO(g) + 2 H2(g) → N2(g) + 2 H2O(g) (d) N2(g) + 2 H2(g) → N2H4(g)
Guida verificata passo dopo passo1
Identify the balanced chemical equation: \(2 \text{H}_2\text{O}(g) \rightarrow 2 \text{H}_2(g) + \text{O}_2(g)\).
Determine the rate of disappearance of the reactant: The rate of disappearance of \(\text{H}_2\text{O}\) is \(-\frac{1}{2} \frac{d[\text{H}_2\text{O}]}{dt}\).
Determine the rate of appearance of the products: The rate of appearance of \(\text{H}_2\) is \(+\frac{1}{2} \frac{d[\text{H}_2]}{dt}\).
Determine the rate of appearance of the products: The rate of appearance of \(\text{O}_2\) is \(+\frac{d[\text{O}_2]}{dt}\).
Relate the rates of disappearance and appearance: \(-\frac{1}{2} \frac{d[\text{H}_2\text{O}]}{dt} = +\frac{1}{2} \frac{d[\text{H}_2]}{dt} = +\frac{d[\text{O}_2]}{dt}\).
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Rate of Reaction
The rate of a chemical reaction is a measure of how quickly reactants are converted into products. It is typically expressed as the change in concentration of a reactant or product over time. In gas-phase reactions, this can be quantified using the stoichiometry of the balanced equation, which indicates how the concentrations of reactants and products change as the reaction proceeds.
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02:03
Average Rate of Reaction
Stoichiometry
Stoichiometry refers to the quantitative relationship between the amounts of reactants and products in a chemical reaction, as dictated by the balanced chemical equation. It allows us to determine the coefficients that represent the molar ratios of substances involved, which are essential for writing rate expressions that accurately reflect the changes in concentration of each species during the reaction.
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01:16Stoichiometry Concept
Rate Expression
A rate expression is a mathematical representation of the rate of a chemical reaction in terms of the concentrations of reactants and products. It is formulated based on the stoichiometry of the reaction, where the rate is expressed as the change in concentration of products divided by the change in concentration of reactants, each raised to the power of their respective coefficients in the balanced equation.
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01:34Rate Expressions Example
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Domanda del libro di testo
For each of the following gas-phase reactions, indicate how the rate of disappearance of each reactant is related to the rate of appearance of each product:
(a) H2O2(g) → H2(g) + O2(g)
(b) 2 N2O(g) → 2 N2(g) + O2(g)
110
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Domanda del libro di testo
(b) The reaction 2 NO1g2 + Cl21g2¡2 NOCl1g2 is carried out in a closed vessel. If the partial pressure of NO is decreasing at the rate of 56 torr/min, what is the rate of change of the total pressure of the vessel?
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Domanda del libro di testo
For each of the following gas-phase reactions, indicate how the rate of disappearance of each reactant is related to the rate of appearance of each product: (c) N21g2 + 3 H21g2¡2 NH31g2
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Domanda del libro di testo
(a) Consider the combustion of hydrogen, 2 H21g2 + O21g2 ¡ 2 H2O1g2. If hydrogen is burning at the rate of 0.48 mol>s, what is the rate of consumption of oxygen? What is the rate of formation of water vapor?
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