General Chemistry 2 Flashcards
Explains the states of matter, their movement and the energy they
possess
Kinetic Molecular Theory of Solids and Liquids
are the forces that hold atoms together within a molecule.
intramolecular forces
are forces that exist between molecules
Intermolecular Forces
Interaction of an ion with the
charge end of another
molecule.
Strength: Strong
Ion-Dipole
formed between a partially positive
hydrogen and a neighboring
molecule with a partially negative
oxygen.
Strength : Medium
Hydrogen Bond
An interaction between two
permanent polar molecules other than N-H, O-H and H-F
Strength: Weak
Dipole-Dipole
An interaction between molecules
with temporary dipoles
Strength : Very Weak
Dispersion Force
Highly dependent on the
cohesion of a substance molecules.
Properties of Liquids
The force that causes the surface of a liquid to contract.
Surface Tension
A liquid’s resistance to flow
Viscosity
The temperature at which the vapor
pressure of the liquid is equal to the
atmospheric pressure
Boiling Point
The pressure of the vapor resulting from
evaporation of a liquid in a closed container.
Vapor Pressure
The amount of heat needed to vaporize a
given amount of substance at its boiling point.
Heat of Vaporization
possess unique properties due to the
formation of hydrogen bonds among its
molecules
Water
Nature of Water
• High boiling point
• Exists as liquid at room temperature.
• High specific heat.
• Only substance that contracts when cooled.
• High heat of vaporization.
• High surface tension.