Intermolecular, Chem Bonding and ene in chem reactions Flashcards
IMF
Forces of attraction/repul between molecules
Intramolecular forces
forces between atoms which keep them together
Dipole
molecule where charge unequally distributed. 1 side more negative
Strength of IMF
Ion-diple> dipole-dipole> ion-induced dipole> dipole-induced dipole> london
Dipole Dipole
between polar molecules
Hydrogen bonds
Between N O F
Dipole induced Dipole
forces between polar and non-polar molecules
London forces
found everywhere aka induced dipole forces
Melting Point
temp at which solid+liquid phases of substance are at equilibrium
Vapor psi
Psi exerted by vapor at equilibrium with its liquid in a closed system
BP
temp at which vapor psi = atmos psi
Dipole-Dipole
Between polar molecules
Hydrogen bonds
Type of dipole dipole force where H covalent bond to small highly electronegative atom(N O F)
Dipole Induced Dipole
Between Polar and Non-Polar
LDF
Forces between non polar molecules
What do polar bonds experience
LDF, Dipole-Dipole
Non polar experiences
LDF
Hydrogen Bond experiences
LDF, Dipole-Dipole and Hydrogen bond
Capilllarity
Tendency of liquid to be elevated or depressed in narrow tube as result of surface tension
Forces of cohesion
Forces of attrac between molecules of same substance
Forces of adhesion
Forces of attrac between molecules of diff substances
Surface Tension
Energy required to increase the surface area of a liquid. Stronger IMF, stronger surface tension
Viscosity
Measure of fluid’s resistance to flow. Stronger IMF, the slower the molecules will be able to flow over each other = higher viscosity. Larger molecules = higher viscosity.
Solubility
Like dissolves like. Substances with similar polarity readily form solutions
Ion Dipole
Between Ions and polar molecules
Ion Induced Dipole
Between Ions and non polar
Polar Molecule
Has a polar bond(Look at ΔEN) and molecule is asymmetrical(otherwise it is non polar)
