Upgrade to remove ads
Kinetic Molecular Theory Review
Terms in this set (81)
According to the kinetic-molecular theory, particles of matter __.
are in constant motion
According to the kinetic-molecular theory, gases condense into liquids because of __.
forces between molecules
The kinetic-molecular theory explains the behavior of __.
solids, liquids, and gases
Which process can be explained by the kinetic-molecular theory?
According to the kinetic-molecular theory, which substances are made of particles?
The kinetic-molecular theory explains the properties of solids, liquids, and gases in terms of the energy of the particles and __.
the forces that act between the particles
According to the kinetic-molecular theory, particles of matter are in motion in __.
solids, liquids, and gases
An ideal gas is an imaginary gas __.
that conforms to all the assumptions of the kinetic theory
Unlike in an ideal gas, in a real gas __.
the particles exert attractive forces on each other
If two moving steel balls collide, their total energy after the collision is the same as before. This is an example of __.
an elastic collision
Which is NOT an assumption of the kinetic-molecular theory?
When individual particles collide, energy is transferred.
According to the kinetic-molecular theory, what is the most significant difference between gases and liquids?
the distance between the particles
According to the kinetic-molecular theory, particles of a gas (attract or repel) __.
neither attract nor repel each other but collide
Which is an example of gas diffusion?
the odor of perfume spreading throughout a room
By which process do gases take the shape of the container?
If a gas with an odor is released in a room, it quickly can be detected across the room because it __.
Which substance has the lowest density?
The density of a substance undergoes the greatest change when the substance changes from a __.
liquid to a gas
According to the kinetic-molecular theory, how does a gas expand?
Its particles move greater distances
Diffusion between two gases occurs most rapidly if the gases are not at a __.
high temperature and the molecules are small
Which is an example of effusion?
air slowly escaping from a pinhole in a tire
What happens to the volume of a gas during compression?
the volume decreases
Under which conditions do real gases most resemble ideal gases?
low pressure and high temperature
When does a real gas behave like an ideal gas?
when the particles are far apart
Why doesn't a gas at a low temperature behave like an ideal gas?
the kinetic energy of the particles is too low
Which gases behave most like an ideal gas?
gases composed of monatomic, nonpolar molecules
As a real gas deviates from ideal gas behavior, the particles __.
experience stronger attractive forces
The behavior of a gas under very high pressure is likely to __.
deviate from ideal gas behavior
Compared with the particles in a gas, the particles in a liquid __.
move around less
The intermolecular forces between particles in a liquid can involve __.
London dispersion, hydrogen bonding, and dipole-dipole
The particles in both gases and liquids __.
can change positions with other particles
The compressibility of a liquid is generally __.
less than that of a gas
The intermolecular forces between particles are __.
more effective in liquids than in gases
The lower mobility of particles in a liquid compared with those in a gas results in the liquid being __.
The attractive forces in a liquid are __.
too weak to hold the particles in fixed positions
The particles in a liquid are usually __.
closer together and lower in energy than those in a gas
What is vaporization?
the process by which a solid and liquid changes to a gas
Which term best describes the process by which particles escape from the surface of a non boiling liquid and enter the gas state?
What causes particles in a liquid to escape into a gas state?
high kinetic energy
What is the physical change of a liquid to a sold by the removal of heat?
A solid forms when the average energy of a substance's particles __.
What is not correct about freezing?
not all liquids freeze
What can happen when the average energy of a liquid's particles decreases?
Particles within a solid __.
vibrate weakly about fixed positions
Forces holding particles together are strongest in a __.
The energy level of the particles in a solid is __.
lower than the energy of the particles in liquids and gases
Compared with the particles in a liquid, the particles in a solid are usually __.
The intermolecular forces between particles in a solid are __.
stronger than those in a liquid
The compressibility of solids is generally __.
lower than the compressibility of liquids and gases
Solids have a definite volume because __.
the particles do not have a tendency to change positions
In general, most substances are (density in solids v. liquids) __.
less dense as solids that as liquids
The rate of diffusion in solids is very low because the __.
particles are not free to move around
Compared with gases, solids are __.
Which of the following properties do solids share with liquids?
What causes the high density of solids?
the particles are packed closely together
The difference between crystalline and amorphous solids is determined by __.
amount of order in particle arrangement
When heated, a pure crystalline solid will __.
exhibit a definite melting temperature
Compared with a crystalline solid, the particles in an amorphous sold __.
occur in a random pattern
What are amorphous solids?
glasses and plastics
What is an example of an crystalline solid?
a quartz rock
Whenever a liquid changes to a vapor, it __.
absorbs heat energy from its surroundings
Molecules at the surface of a liquid can enter the vapor phase only if __.
their energy is high enough to overcome the attractive forces in the liquid
A volatile liquid __.
What is the process of a substance changing from a solid to a vapor without passing through the liquid phase?
At pressures greater than 760 mm Hg, water will boil at __.
a temperature higher than 100 degrees celsius
Why would a camper near the top of Mt. Everest find that water boils at less than 100 degrees celsius?
there is less atmospheric pressure than at sea level
Glycerol's attractive forces are __.
stronger than those of water
During boiling, the temperature of a liquid __.
During the process of freezing, a liquid __.
loses potential energy
As the atmospheric pressure on the surface of a liquid decreases, its boiling point __.
At its triple point, water can __.
exist in equilibrium in three different phases
A phase diagram indicates conditions under which __.
the various states of a substance exist
The triple point of a substance is the temperature and pressure conditions at which __.
states of a substance coexist at equilibrium
Above the critical temperature, a substance __.
cannot exist in the liquid state
What is the critical pressure?
the lowest pressure under which a substance can exist as a liquid at the critical temperature
Why is ice less dense than liquid water?
The molecules in liquid water can crowd together more compactly than in ice
In ice, what holds H2O molecules together?
If the water molecules were non polar, it is likely that __.
water would be a gas at room temperature
What is the freezing point of water?
0 degrees celsius
What is the boiling point of water?
100 degrees celsius
Why doesn't water in lakes and ponds of temperate climates freeze solid during the winter and kill nearly all he living things it contains?
This set is often in folders with...
Kinetic Molecular Theory
Chem ch 10/11
W9 Electron Configuration and orbital diagrams
Chapter 14: Combined Gas Law and Avogadro's Princi…
You might also like...
Chemistry Chapter 10
Chemistry chapter 10
4.2 States of Matter
Chemistry chapter 10
Other sets by this creator
HDFS 3080 - Exam 2 (Speaking Notes)
HDFS 3060 - Lecture 17
HDFS 3060 - Lecture 16
HDFS 3060 - Driver Article
Other Quizlet sets
Kinetic Molecular Theory
Chemistry Chapter 10 Test
chemistry chapter 10 test
chapter 13 review chem final