Font size
WorksheetsIMF Properties
Total questions: 20
Worksheet time: 12mins
Viscosity is
the resistance to flow
the resistance to spread out
the ability to make sheets of metal
the ability to make wire
A weak IMF will result in a
high melting point
high viscosity
high surface tension
low surface tension
Which model represents a LOWER Vapor Pressure?
A
B
Which model represents STRONGER Intermolecular Forces?
A
B
Surface tension is the property of water in which...
water molecules at the surface tend to stick together.
water spills easily.
water tends to be see-through.
Which container has the greatest Vapor Pressure
red
yellow
blue
Which container has the greatest Intermolecular Force between Molecules?
red
yellow
blue
Molecules with strong attraction between themselves require __________ to separate than weakly attracted molecules.
More energy
Less energy
No energy
Nuclear energy
Liquids that are volatile also have what type of vapor pressure?
High
medium
low
marginal
Which compound has the strongest IMF
HOH
CH4
C2H6
CH3OH
Which compound has the weakest IMF
C3H8
CH4
C2H6
C4H10
the spontaneous rising of a liquid in a narrow tube
Surface Tension
Capillary Action
Viscosity
None of the above
All of the above
The measure of the resistance to the flow of a liquid is called:
vapor pressure.
sublimation.
viscosity.
condensation.
In what situation does DIPOLE -DIPOLE FORCES are stronger?
If two molecules are of comparable size and shape, dipole–dipole interactions will likely be the dominating force.
If one molecule is much larger than another, dipole–dipole interactions will likely be the dominating force.
If positive ends of polar molecules are oriented to negatively charged anions, dipole–dipole interactions will likely be the dominating force.
If negative ends of polar molecules are oriented to positively charged cations, dipole–dipole interactions will likely be the dominating force.
In which situation does DISPERSION FORCES are strongest?
If two molecules are of comparable size and shape, dispersion forces will likely determine its physical properties.
If one molecule is much larger than another, dispersion forces will likely determine its physical properties.
If negative ends of polar molecules are oriented to positively charged cations, dispersion forces will likely determine its physical properties.
If positive ends of polar molecules are oriented to negatively charged anions, dispersion forces will likely determine its physical properties.
Sodium chloride is completely soluble in water. What is responsible
for its solubility in water?
Na+ and Cl- ions are favorable sites for H-bonding to form.
The ions in NaCl participate in ion-induced dipole attractions with
water.
The presence of charged ends in NaCl enables dipole-dipole
interaction with water.
London dispersion forces in NaCl predominate leading to strong
dipole interactions with water.
Xenon has a greater atomic weight than neon. Xe has 131.3 amu while
Ne has 20.2 amu. The boiling points are 166.1K and 27.3K, respectively.
How do intermolecular forces account for the difference?
Dipole- dipole interaction is greater in Xe than Ne so more
energy is needed to break the bonds.
H-bonding is greater for substances with higher atomic weight
so greater energy is needed to change Xe to vapour.
Atomic weight increases the chance of lesser dispersion forces
so greater energy is needed to separate Xe atoms to change to
vapour
London dispersion forces are greater in substances with
heavier atomic weight so greater energy is needed to separate
the atoms of Xe than Ne.
Which statement explains why Br2 is a liquid at STP and I2 is a solid at STP?
Molecules of Br2 are polar, and molecules of I2 are nonpolar
Molecules of Br2 are nonpolar, and molecules of I2 are polar
Molecules of Br2 have stronger intermolecular forces than molecules of I2.
Molecules of I2 have stronger intermolecular forces than molecules of Br2.
