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Unit 3 Part 2
Chemistry
| Question | Answer |
|---|---|
| Can collisions between gases be inelastic? | To some extent |
| Intramolecular forces | Bonds are inside molecules; ionic or covalent |
| Intermolecular forces | Attraction between molecules; exist outside of the molecules |
| Dipole | Permanent positive and negative ends of separate polar molecules |
| Ion-Ion | Ions only |
| Ion-Dipole | Ions and polar molecules; positive and negative bond together |
| Dipole-induced dipole | At least one molecule must be polar |
| Dispersion | All types of molecules |
| Hydrogen Bonding | N, O, F bond with a Hydrogen; share the H bond |
| Hydrogen bonding ranked(O, N, F) | N<O<F |
| Lattice energies from ionic bonds | 800-10,000 kJ/mole |
| Covalent tripe bond energy | 800 kJ/mole |
| Covalent double bond energy | 600 kJ/mole |
| Covalent single bond energy | 400 kJ/mole |
| Ion-Dipole energy | 100 kJ/mole |
| Hydrogen bonding energy | 20 kJ/mole |
| Dipole-Dipole energy | 10 kJ/mole |
| Dipersion | 1 kJ/mole |
| High boiling point | High IMF |
| High heat of vapor | High IMF |
| High gas non-ideality | High IMF |
| High Capillary Action | High IMF |
| High melting point | High IMF |
| High surface tension | High IMF |
| High evaporation | Low IMF |
| High vapor pressure | Low IMF |
| The stronger the imtermolecular force, the _____________________________ | Stronger the liquid propery |
| Boiling point | Sufficient energy is imparted to a liquid to break the intermolecular forces that hold molecules together in a solution; directly proportional to IMF |
| Viscosity | "Stickiness) liquids exhibit when being poured; directly proportional to IMF |
| Capillary Action | Tendency of a liquid to climb the walls of a capillary(tube with a thin diameter); directly proportional to IMF |
| Surface Tension | Maintains the surface interface between a liquid and a gas; causes things to float; directly proportional to IMF |
| Heat of vaporization | Amount of energy required for a liquid to turn into a gas; directly proportional to IMF |
| Vapor Pressure | Amount of vapor that exists above a liquid in a closed container; inversely proportional to IMF |
| Evaporation | IMF that holds the surface molecules together is overcome by heat applied to the system prompting surface molecules to enter the gas phase; inversely proportional to IMF |
| Dispersion ranking | The bigger the molecule, the bigger the IMF |
| Dipole-Dipole ranking | The larger the net dipole, the larger the IMF |
| Hydrogen Bonding ranking | N<O<F; number of H bonds |
| Ionic Compounds ranking | Charge density; add up the charges; lattice energy |
| When the temperature is low, what is more likely to be produced? | Solids |
| Metallic Solids | Malleable, ductile, lustrous, electrically and thermally conducting |
| Ionic Solids | Hard, rigid, brittle, high melting and boiling points, those soluble in water give conducting solutions |
| Network Solids | Hard, rigid, brittle, very high melting points, insoluble in water |
| Molecular Solids | Relatively low melting point and boiling point; brittle if pure |
| Metallic Bond | Bonding between metals on the left side of the period table |
| Ionic Bond(Solids) | Metals and nonmetals Bond together |
| Covalent Network(solid) Bond | Nonmetals that form extended chains of covalent bonds |
| Most solid in the world are... | Covalent Network Solids |
| Molecular Solid Bonds | Small molecule develops intermolecular attractions to the other molecules, a solid can form |
| Gases have the lowest... | Melting point |
| Gas velocities vary with the inverse square of... | Mass |
| Electronegativity Negativity goes down by _____ as you go ______ the periodic table | .1, down |
| The smaller the molecule, the ... | Smaller the amount of dispersion forces |
| What two elements are the most ideal? | Hydrogen and Helium |
| Colder = | Lower IMF |
| Warmer = | Higher IMF |
| Dispersion | Distortion of the electron cloud of an atom or molecule by the presence of nearby atoms or molecules |
| State functions describe... | Quantitative values of a system at equilibrium |
| What contributes to gas non-ideality? | High pressure, low temperature, small volume |
| Intermolecular force theory | In non-polar molecules, dispersion forces result from the momentary polarization of the electron cloud |
| Permanent dipoles | Occurs in polar molecules |
Created by:
lsutigergym
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