CHEM 1035 Final Exam Study Guide -
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Weakest forces, exist in all substances, only force in non-polar substances, form temporary
dipoles - correct answer ✔✔ London or Dispersion forces
Dispersion forces ____ with increasing molar mass - correct answer ✔✔ increase
Stronger than dispersion forces, only present in polar substances, attraction between oppositely
charges ends of polar molecules - correct answer ✔✔ Dipole-dipole forces
Dipole-dipole forces ____ with increasing molar mass - correct answer ✔✔ increase
Very strong dipole force, only exist in compounds where H is covalently bonded to O, N, or F,
due to high electronegativity difference in H and O, N, or F - correct answer ✔✔ Hydrogen
bonds
Hydrogen bonded substances have ____ boiling points - correct answer ✔✔ high
The strength of hydrogen bonds _____ when ____ H-bonding sites are present - correct answer
✔✔ increase, more
Intermolecular forces between 2 different substances, between an ion and a polar molecule,
attraction between oppositely charged ends of polar molecule and positive/negatively charged
ion - correct answer ✔✔ Ion-dipole forces
,dispersion, dipole-dipole, hydrogen bonding, ion-dipole - correct answer ✔✔ Intermolecular
forces in order on increasing strength
The ____ the intermolecular forces the higher the boiling point - correct answer ✔✔ stronger
For substances with the same type of intermolecular forces the boiling point __ with increasing
molar mass - correct answer ✔✔ increases
Viscosity is dependent on - correct answer ✔✔ intermolecular forces and temperature
Viscosity _____ with increasing temperature - correct answer ✔✔ decreases
Viscosity _____ with stronger intermolecular forces - correct answer ✔✔ increases
Surface tension is dependent on [2 things] - correct answer ✔✔ intermolecular forces and
temperature
Surface tension ____ with stronger intermolecular forces - correct answer ✔✔ increases
Surface tension _____ with increasing temperature - correct answer ✔✔ decreases
Vapor pressure is dependent on - correct answer ✔✔ intermolecular forces and temperature
Vapor pressure ____ with stronger intermolecular forces - correct answer ✔✔ decreases
Vapor Pressure ___ with increasing temperature - correct answer ✔✔ increases
, Boiling point is the point where - correct answer ✔✔ vapor pressure overcomes atmospheric
pressure
Boiling Point is dependent on - correct answer ✔✔ intermolecular forces and atmospheric
pressure
Boiling point is ____ when intermolecular forces are weak - correct answer ✔✔ low
Boiling point ____ with increasing atmospheric pressure - correct answer ✔✔ increases
solid to gas - correct answer ✔✔ sublimation
solid to liquid - correct answer ✔✔ melting
liquid to gas - correct answer ✔✔ vaporization
gas to liquid - correct answer ✔✔ condensation
liquid to solid - correct answer ✔✔ freezing
gas to solid - correct answer ✔✔ deposition
sublimation(subl), vaporization(vap), and melting(fus) - correct answer ✔✔ delta H positive
condensation(vap), freezing(fus), and deposition(subl) - correct answer ✔✔ delta H is negative
1 atm = ___ mm Hg = ___ Torr - correct answer ✔✔ 760
Virginia Tech questions well answered
already passed
Weakest forces, exist in all substances, only force in non-polar substances, form temporary
dipoles - correct answer ✔✔ London or Dispersion forces
Dispersion forces ____ with increasing molar mass - correct answer ✔✔ increase
Stronger than dispersion forces, only present in polar substances, attraction between oppositely
charges ends of polar molecules - correct answer ✔✔ Dipole-dipole forces
Dipole-dipole forces ____ with increasing molar mass - correct answer ✔✔ increase
Very strong dipole force, only exist in compounds where H is covalently bonded to O, N, or F,
due to high electronegativity difference in H and O, N, or F - correct answer ✔✔ Hydrogen
bonds
Hydrogen bonded substances have ____ boiling points - correct answer ✔✔ high
The strength of hydrogen bonds _____ when ____ H-bonding sites are present - correct answer
✔✔ increase, more
Intermolecular forces between 2 different substances, between an ion and a polar molecule,
attraction between oppositely charged ends of polar molecule and positive/negatively charged
ion - correct answer ✔✔ Ion-dipole forces
,dispersion, dipole-dipole, hydrogen bonding, ion-dipole - correct answer ✔✔ Intermolecular
forces in order on increasing strength
The ____ the intermolecular forces the higher the boiling point - correct answer ✔✔ stronger
For substances with the same type of intermolecular forces the boiling point __ with increasing
molar mass - correct answer ✔✔ increases
Viscosity is dependent on - correct answer ✔✔ intermolecular forces and temperature
Viscosity _____ with increasing temperature - correct answer ✔✔ decreases
Viscosity _____ with stronger intermolecular forces - correct answer ✔✔ increases
Surface tension is dependent on [2 things] - correct answer ✔✔ intermolecular forces and
temperature
Surface tension ____ with stronger intermolecular forces - correct answer ✔✔ increases
Surface tension _____ with increasing temperature - correct answer ✔✔ decreases
Vapor pressure is dependent on - correct answer ✔✔ intermolecular forces and temperature
Vapor pressure ____ with stronger intermolecular forces - correct answer ✔✔ decreases
Vapor Pressure ___ with increasing temperature - correct answer ✔✔ increases
, Boiling point is the point where - correct answer ✔✔ vapor pressure overcomes atmospheric
pressure
Boiling Point is dependent on - correct answer ✔✔ intermolecular forces and atmospheric
pressure
Boiling point is ____ when intermolecular forces are weak - correct answer ✔✔ low
Boiling point ____ with increasing atmospheric pressure - correct answer ✔✔ increases
solid to gas - correct answer ✔✔ sublimation
solid to liquid - correct answer ✔✔ melting
liquid to gas - correct answer ✔✔ vaporization
gas to liquid - correct answer ✔✔ condensation
liquid to solid - correct answer ✔✔ freezing
gas to solid - correct answer ✔✔ deposition
sublimation(subl), vaporization(vap), and melting(fus) - correct answer ✔✔ delta H positive
condensation(vap), freezing(fus), and deposition(subl) - correct answer ✔✔ delta H is negative
1 atm = ___ mm Hg = ___ Torr - correct answer ✔✔ 760
