Domanda del libro di testo
The table below lists the density of O2 at various temperatures and at 1 atm. The normal melting point of O2 is 54 K.
(b) Over what temperature range is O2 a liquid?
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Ch.11 - Liquids and Intermolecular Forces
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970
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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 11, Problema 77e
Suppose you have two colorless molecular liquids, one boiling at - 84 °C, the other at 34 °C, and both at atmospheric 6 pressure. Which of the following statements is correct? For each statement that is not correct, modify the statement so that it is correct. (e) At - 84 °C both liquids have vapor pressures of 760 mm Hg.
Guida verificata passo dopo passo1
Identify the boiling point of each liquid: Liquid A boils at -84 °C and Liquid B boils at 34 °C.
Understand that the boiling point of a liquid is the temperature at which its vapor pressure equals the external pressure, typically 760 mm Hg at atmospheric pressure.
Since Liquid A boils at -84 °C, its vapor pressure is 760 mm Hg at this temperature.
Since Liquid B boils at 34 °C, its vapor pressure is 760 mm Hg at this temperature.
Therefore, at -84 °C, only Liquid A has a vapor pressure of 760 mm Hg, not both liquids.
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Boiling Point and Vapor Pressure
The boiling point of a liquid is the temperature at which its vapor pressure equals the atmospheric pressure. At this point, the liquid transitions to a gas. For the liquid boiling at -84 °C, it will have a vapor pressure of 760 mm Hg at that temperature, but the other liquid, boiling at 34 °C, will not necessarily have the same vapor pressure at -84 °C.
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Percorso guidato
03:05
Boiling Point Elevation
Vapor Pressure and Temperature Relationship
Vapor pressure is the pressure exerted by a vapor in equilibrium with its liquid at a given temperature. As temperature increases, the vapor pressure of a liquid also increases. Therefore, at -84 °C, the vapor pressures of both liquids will be lower than 760 mm Hg, making the statement about both having the same vapor pressure at that temperature incorrect.
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Percorso guidato
02:40Raoult's Law and Vapor Pressure
Atmospheric Pressure
Atmospheric pressure is the pressure exerted by the weight of the atmosphere at a given location, typically measured at sea level as 760 mm Hg. This pressure is crucial for understanding boiling points and vapor pressures, as liquids will boil when their vapor pressure matches this atmospheric pressure. The statement in question fails to consider that vapor pressures vary with temperature and are not constant across different liquids.
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Percorso guidato
02:09Total Pressure Example
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Domanda del libro di testo
Suppose you have two colorless molecular liquids, one boiling at −84°C, the other at 34°C, and both at atmospheric pressure. Which of the following statements are true? d. The two liquids have identical vapor pressures at their normal boiling points.
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Two isomers of the planar compound 1,2-dichloroethylene are shown here.
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(a) How many of these compounds exhibit dispersion interactions?
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The table below shows the normal boiling points of benzene and benzene derivatives. (e) Why is the boiling point of phenol the highest of all?
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