Domanda del libro di testo
In Section 11.5, we defined the vapor pressure of a liquid in terms of an equilibrium. (b) By using data in Appendix B, give the value of Kp for this reaction at 30 C.
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Ch.15 - Chemical Equilibrium
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 15, Problema 100c
In Section 11.5, we defined the vapor pressure of a liquid in terms of an equilibrium. (c) What is the value of Kp for any liquid in equilibrium with its vapor at the normal boiling point of the liquid?
Guida verificata passo dopo passo1
Understand that the normal boiling point of a liquid is the temperature at which its vapor pressure equals the external pressure, typically 1 atm.
Recognize that at equilibrium, the rate of evaporation of the liquid equals the rate of condensation of the vapor.
Recall that the equilibrium constant for the vaporization process, Kp, is defined in terms of the partial pressures of the vapor phase.
At the normal boiling point, the vapor pressure of the liquid is equal to the external pressure, which is 1 atm.
Therefore, the value of Kp at the normal boiling point is equal to the vapor pressure of the liquid, which is 1 atm.
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Vapor Pressure
Vapor pressure is the pressure exerted by a vapor in equilibrium with its liquid or solid phase at a given temperature. It reflects the tendency of particles to escape from the liquid phase into the vapor phase. At the normal boiling point, the vapor pressure of a liquid equals the external atmospheric pressure, allowing the liquid to transition to gas.
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Percorso guidato
02:40
Raoult's Law and Vapor Pressure
Equilibrium Constant (Kp)
The equilibrium constant, Kp, is a dimensionless number that expresses the ratio of the partial pressures of the products to the reactants at equilibrium for a given reaction. For a liquid in equilibrium with its vapor, Kp can be defined as the ratio of the vapor pressure of the liquid to the pressure of the liquid, which is typically considered to be 1 at the boiling point.
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Percorso guidato
03:20Equilibrium Constant Expressions
Normal Boiling Point
The normal boiling point of a liquid is the temperature at which its vapor pressure equals the standard atmospheric pressure (1 atm). At this point, the liquid can transition to gas throughout the entire liquid volume, not just at the surface. This concept is crucial for understanding the conditions under which Kp is defined for a liquid in equilibrium with its vapor.
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Percorso guidato
03:05Boiling Point Elevation