MODULE 1

Cards (41)

  • Intermolecular force
    matter have different orientation of particles depending on the nature of ____ present between each particle of matter
  • Intermolecular force
    is a force that hold individual particle such as atoms, molecule or ions together
  • strong
    Intramolecular forces
  • weaker
    intermolecular force
  • Kinetic Molecular model
    phase at which any substance may exist depends on the intermolecular forces and predominance of the kinetic energy of the particles
  • temperature
    the kinetic energy that keeps particles moving depends upon ___
  • faster the particles movement
    the higher temperature =
  • intermolecular forces, predominance of the kinetic energies
    the phase at which any substance may exist depends on the ____ and ___ of the particle
  • temperature
    __ affect the amount of kinetic energy of molecules, therefore affecting their movement
  • expand
    particles __ upon heating
  • contract
    particles ___ upon cooling
  • required amount of energy to overcome
    he stronger the IMF the greater is the ____
  • solid, liquid, gas
    sequence of matter if you add energy
  • gas, liquid, solid
    sequence if you remove energy
  • London Dispersion Force, Ion-dipole interaction, Dipole-dipole interaction, Hydrogen bonding
    what are the types of IMF
  • dipole moment
    occur when there’s a separation of charge
  • dipole moment
    arise from differences in electronegativity
  • Dipole moment
    they can occur between two ions in an ionic bond or between atoms i a covalent bond
  • polar molecules
    is a chemical species in which the distribution of electrons between covalently bonded atoms is not even
  • nonpolar molecules
    completely symmetric, has even distribution of electrons around molecule. The dipole moment vectors will cancel each other out, making the molecule ___
  • Electronegativity
    is a measure of an atom’s ability to attract shared atoms to itself.
  • left to right, you move down a group
    On the periodic table, electronegativity generally increases as you move from ____ across a period and decreases as
  • polar
    there are different terminal atoms
  • polar
    there is/are lone pair/s around central atom
  • london dispersion forces, temporary dipole
    weakest among intermolecular forces in a nonpolar molecule create __
  • polarizability
    tendency to create temporary dipole is called ____
  • Ion-dipole interaction
    arises from the interaction between ion (cation and anion) and a polar molecule
  • dipole-dipole interaction
    imf exhibited by polar molecule in which positive end attracts the negative end of another polar molecule
  • Hydrogen bonding
    a special kind of dipole-dipole interactionwith the involvement of hydrogen.
  • Hydrogen bonding
    also important in holding together the complimentary nitrogenous bases in DNA as well as the formation of protein structure
  • viscosity
    refers to the measure of liquid’s resistance to flow
  • strong IMF
    highly viscous means __
  • Surface tension
    amount of resistance needed to increase the surface area of liquids
  • vapor pressure
    pressure of vapor (gas) present at equilibrium
  • weak IMF
    high vapor pressure means
  • lower vapor pressure
    high IMF in liquids
  • boiling point
    a liquid boils when its vapor pressure is equal to the prevailing atmospheric pressure
  • 101 325 Pa.
    boiling point of liquid is equal to the standard pressure of
  • Melting point (freezing point)
    is the temperature at which solid and liquid ohases coexist in a equilibrium
  • Sublimation
    some solids vaporize at atmospheric pressure without passing through the liquid state