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Unformatted text preview: Δ T • How to calculate between phase changes. Intermolecular Forces • Influenced Properties by intermolecular forces o Boiling point o Freezing point o Vapor pressure Types of intermolecular forces • Hydrogen-bonding o Strongest force o Force between (H-O)(H-N)(H-F) • Dipole-Dipole o Between All polar molecules. • London dispersion forces o Between all molecules. o Temporary attraction. o Weakest force Viscosity • The resistance to flow. • intermolecular forces, viscosity • size, viscosity • Viscosity of a liquid decreases as temp. Increases because intermolecular forces become weaker. Surface tension • Surface tension is the amount of energy to break the intermolecular force of a liquid. o intermolecular forces, surface tension. o temperature, surface tension. Know what crystal lattice looks like. Amorphous • Randomly arranged Crystalline • Well-ordered pattern....
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- Spring '08
- Fundamental physics concepts