General Chemistry 2 Test 1 Questions
And Answers Latest Update | Solved
What happens to vapor pressure as temperature increases? CORRECT ANSWERS
Vapor pressure increases
What is the difference between intramolecular forces and intermolecular forces?
CORRECT ANSWERS Intramolecular forces are bonding forces & exist within
molecules. They influence chemical properties.
Intermolecular forces are nonbonding forces that exist between molecules & influence
the physical properties of the substance.
Within a phase, which equation do you use? CORRECT ANSWERS q = (amount) x
(molar heat capacity) x Delta T
Which equation relates vapor pressure to temperature? CORRECT ANSWERS The
Clausius-Clapeyron equation (which relates vapor pressure to temperature)
The .... ....of a liquid is the temperature at which the vapor pressure equals the external
pressure. CORRECT ANSWERS boiling point
The temperature at which the vapor pressure equals standard atmospheric pressure,
760 torr. CORRECT ANSWERS normal boiling point
What happens to the boiling point when the external pressure on a liquid increases?
CORRECT ANSWERS The boiling point increases
What happens at the critical point in a phase diagram? CORRECT ANSWERS At the
critical point, the densities of the liquid and gas phases become equal.
What happens at the triple point in a phase diagram? CORRECT ANSWERS At the
triple point, all three phases are in equilibrium.
more polarizable = stronger .... .... CORRECT ANSWERS intermolecular force
What are the trends in polarizability? CORRECT ANSWERS Polarizability decreases
across a period because of increasing Zeff.
Polarizability increases down a group because atomic size increases and larger
electron clouds distort more easily.
In general, smaller particles are less polarizable than larger ones because their
electrons are held more tightly.
, When do dispersion or london forces arise? CORRECT ANSWERS When an
instantaneous dipole in one particle induces a dipole in another, resulting in an
attraction between them.
Memorize figure 12.19 (summary diagram) CORRECT ANSWERS If there are
interacting particles then they are separated into 2 categories.
For ions present, if there are ions only, it is ionic bonding. If there are ions and polar
molecules, it is ion-dipole forces.
When there are no ions present, for polar molecules, it could be dipole-dipole, unless
hydrogen is bonded to n, o, or f, which means it'd be hydrogen bonding. Another section
is the polar & nonpolar molecules, which would be dipole-induced dipole forces. The
final one would be nonpolar with only dispersion forces.
The stronger the forces between the particles the higher the .... ..... CORRECT
ANSWERS surface tension
Dispersion forces are stronger for which type of particles? CORRECT ANSWERS
larger, more polarizable particles
Which two things affect viscosity? CORRECT ANSWERS 1) Increasing temperature
decreases viscosity
2) Given the same types of intermolecular forces, liquids consisting of longer molecules
have higher viscosities.
When the strength of the intermolecular forces increase, what happens to vapor
pressure? CORRECT ANSWERS It decreases
Bonding forces are stronger than nonbonding (intermolecular) forces.
Hydrogen bonding is a strong type of dipole-dipole force.
Dispersion forces are decisive when the difference is molar mass or molecular shape.
CORRECT ANSWERS Bonding forces are stronger than nonbonding (intermolecular)
forces.
Hydrogen bonding is a strong type of dipole-dipole force.
Dispersion forces are decisive when the difference is molar mass or molecular shape.
Solids are divided into 2 categories: CORRECT ANSWERS crystalline solids &
amorphous solids
How many atoms are there in a simple cubic unit cell? CORRECT ANSWERS 1
How many atoms are there in a body-centered cubic unit cell? CORRECT ANSWERS 2
How many atoms are there in a face-centered cubic unit cell? CORRECT ANSWERS 4
And Answers Latest Update | Solved
What happens to vapor pressure as temperature increases? CORRECT ANSWERS
Vapor pressure increases
What is the difference between intramolecular forces and intermolecular forces?
CORRECT ANSWERS Intramolecular forces are bonding forces & exist within
molecules. They influence chemical properties.
Intermolecular forces are nonbonding forces that exist between molecules & influence
the physical properties of the substance.
Within a phase, which equation do you use? CORRECT ANSWERS q = (amount) x
(molar heat capacity) x Delta T
Which equation relates vapor pressure to temperature? CORRECT ANSWERS The
Clausius-Clapeyron equation (which relates vapor pressure to temperature)
The .... ....of a liquid is the temperature at which the vapor pressure equals the external
pressure. CORRECT ANSWERS boiling point
The temperature at which the vapor pressure equals standard atmospheric pressure,
760 torr. CORRECT ANSWERS normal boiling point
What happens to the boiling point when the external pressure on a liquid increases?
CORRECT ANSWERS The boiling point increases
What happens at the critical point in a phase diagram? CORRECT ANSWERS At the
critical point, the densities of the liquid and gas phases become equal.
What happens at the triple point in a phase diagram? CORRECT ANSWERS At the
triple point, all three phases are in equilibrium.
more polarizable = stronger .... .... CORRECT ANSWERS intermolecular force
What are the trends in polarizability? CORRECT ANSWERS Polarizability decreases
across a period because of increasing Zeff.
Polarizability increases down a group because atomic size increases and larger
electron clouds distort more easily.
In general, smaller particles are less polarizable than larger ones because their
electrons are held more tightly.
, When do dispersion or london forces arise? CORRECT ANSWERS When an
instantaneous dipole in one particle induces a dipole in another, resulting in an
attraction between them.
Memorize figure 12.19 (summary diagram) CORRECT ANSWERS If there are
interacting particles then they are separated into 2 categories.
For ions present, if there are ions only, it is ionic bonding. If there are ions and polar
molecules, it is ion-dipole forces.
When there are no ions present, for polar molecules, it could be dipole-dipole, unless
hydrogen is bonded to n, o, or f, which means it'd be hydrogen bonding. Another section
is the polar & nonpolar molecules, which would be dipole-induced dipole forces. The
final one would be nonpolar with only dispersion forces.
The stronger the forces between the particles the higher the .... ..... CORRECT
ANSWERS surface tension
Dispersion forces are stronger for which type of particles? CORRECT ANSWERS
larger, more polarizable particles
Which two things affect viscosity? CORRECT ANSWERS 1) Increasing temperature
decreases viscosity
2) Given the same types of intermolecular forces, liquids consisting of longer molecules
have higher viscosities.
When the strength of the intermolecular forces increase, what happens to vapor
pressure? CORRECT ANSWERS It decreases
Bonding forces are stronger than nonbonding (intermolecular) forces.
Hydrogen bonding is a strong type of dipole-dipole force.
Dispersion forces are decisive when the difference is molar mass or molecular shape.
CORRECT ANSWERS Bonding forces are stronger than nonbonding (intermolecular)
forces.
Hydrogen bonding is a strong type of dipole-dipole force.
Dispersion forces are decisive when the difference is molar mass or molecular shape.
Solids are divided into 2 categories: CORRECT ANSWERS crystalline solids &
amorphous solids
How many atoms are there in a simple cubic unit cell? CORRECT ANSWERS 1
How many atoms are there in a body-centered cubic unit cell? CORRECT ANSWERS 2
How many atoms are there in a face-centered cubic unit cell? CORRECT ANSWERS 4
