Podcast
Questions and Answers
Which physical properties are affected by intermolecular forces?
Which physical properties are affected by intermolecular forces?
- Density and color
- Conductivity and malleability
- Hardness and ductility
- Boiling points and viscosity (correct)
Which intermolecular force is the strongest?
Which intermolecular force is the strongest?
- Ion-dipole forces
- Dipole-dipole forces
- Hydrogen bonding (correct)
- Dispersion forces
What factors affect dispersion forces?
What factors affect dispersion forces?
- Number of electrons, size of atom/molecule, and shape (correct)
- Number of valence electrons, electronegativity, and atomic radius
- Bond length, bond angle, and bond energy
- Atomic mass, number of protons, and number of neutrons
Which type of intermolecular force occurs in polar molecules?
Which type of intermolecular force occurs in polar molecules?
When does hydrogen bonding occur?
When does hydrogen bonding occur?
What do phase diagrams show?
What do phase diagrams show?
What are liquid crystals?
What are liquid crystals?
Flashcards
Strongest intermolecular force
Strongest intermolecular force
Hydrogen bonding is the strongest intermolecular force.
Intermolecular forces affect
Intermolecular forces affect
Boiling points and viscosity are influenced by intermolecular forces.
Dispersion forces depend on
Dispersion forces depend on
Dispersion forces depend on the number of electrons, size of atom/molecule, and shape.
Dipole-dipole forces in
Dipole-dipole forces in
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Hydrogen bonding occurs when
Hydrogen bonding occurs when
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Phase diagrams show
Phase diagrams show
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Liquid crystals are
Liquid crystals are
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Boiling Points
Boiling Points
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Viscosity
Viscosity
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Physical Properties
Physical Properties
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Study Notes
- States of matter differ in intermolecular forces of attraction.
- Stronger forces bring molecules closer together, forming condensed phases.
- Intermolecular forces affect physical properties like boiling points, viscosity, and surface tension.
- Weakest to strongest intermolecular forces: dispersion forces, dipole-dipole forces, hydrogen bonding, and ion-dipole forces.
- Dispersion forces depend on the number of electrons, size of atom/molecule, and shape.
- Dipole-dipole interactions occur in polar molecules and increase with polarity.
- Hydrogen bonding occurs when H is bonded to N, O, or F, and is a strong dipole-dipole interaction.
- Ion-dipole interactions are found in solutions of ions and allow ionic substances to dissolve in polar solvents.
- Phase diagrams show melting, boiling, and sublimation points at different pressures.
- Liquid crystals have traits of both solids and liquids, with some degree of molecular order.
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