Chem 1025 Practice Questions and Answers 2023/2024
with complete solution
Which of the following is NOT part of the kinetic molecular theory of gases?
A) A gas is composed of very small particles.
B) There is very little empty space in a gas.
C) Gas particles move rapidly.
D) Gas particles do not attract or repel onw another.
E) Gas particles move faster whene the remperature increases.
Answer= D
According to the kinetic molecular theory of gases, a gas can be compressed
much more than a liquid or solid because
A) A gas is composed of very small particles.
B) The particles of a gas are very far apart.
C) Gas particles move rapidly.
D) Gas particles do not attract or repel one another.
E) Gas particles move faster when the temperature increases.
Answer= B
According to kinetic molecular theory of gases, particles of a gas
A) are very large particles
B) are very far apart
C) lose their valence electrons
D) move slowly
E) decrease in kinetic energy as temperature increases
Answer=B
In the kinetic molecular theory of gas behavior, particles of a gas tend to move
______ and collisions between them are
A) rapidly, rare
B) slowly, rare
C) rapidly, elastic
D) slowly, elastic
E) slowly, unusual
Answer= C
The boiling point of water at sea level is 100° C. At higher altitudes, the boiling
point of water will be
A) lower, because temperatures are lower.
B) lower, because the atmospheric pressure is lower.
C) higher, because the altitude is greater.
D) higher, because there are fewer water molecules in the air.
E) The same, because water always boils at 100° C
Answer= B
What unit of temperature is used in gas law calculations?
A) Fahrenheit
B) Celsius
C) Kelvin
, D) either Celsius or Fahrenheit
E) either Celsius or kelvin
Answer= C
In the kinetic molecular theory of gas behavior, the assumption is made of gas
molecules
A) move rapidly in random directions.
B) are attracted to each other by strong forces.
C) are close together in their container
D) move with a kinetic energy equal to their centigrade temperature
E) occasionally come to rest
Answer= A
In the kinetic molecular theory of gas behavior, the distance between gas
molecules is assumed to be ________ the diameter of the gas molecules
A) 22.4 times
B) small relative to
C) dependent on
D) approximately the same as
E) large relative to
Answer= E
The pressure exerted by a gas on its confined is directly proportional to
A) the volume of the container.
B) the mads of the individual has molecules
C) the Celsius temperature of the gas
D) the number of molecules of gas in the sample
E) the Fahrenheit temperature of the gas
Answer= D
As you rise higher in Earth's atmosphere, the atmospheric pressure
A) increases
B) decreases
C) remains the same
Answer=B
The air pressure on a rainy day is usually __________ air pressure on a sunny
day.
A) higher than
B) lower than
C) the same as
Answer= B
The force of gas particles against the walls of the container is called
A) pressure
B) volume
C) temperature
D) quantity of gas
E) density
Answer= A
The unit of 1 atmosphere used to describe the pressure of a gas is equal to
with complete solution
Which of the following is NOT part of the kinetic molecular theory of gases?
A) A gas is composed of very small particles.
B) There is very little empty space in a gas.
C) Gas particles move rapidly.
D) Gas particles do not attract or repel onw another.
E) Gas particles move faster whene the remperature increases.
Answer= D
According to the kinetic molecular theory of gases, a gas can be compressed
much more than a liquid or solid because
A) A gas is composed of very small particles.
B) The particles of a gas are very far apart.
C) Gas particles move rapidly.
D) Gas particles do not attract or repel one another.
E) Gas particles move faster when the temperature increases.
Answer= B
According to kinetic molecular theory of gases, particles of a gas
A) are very large particles
B) are very far apart
C) lose their valence electrons
D) move slowly
E) decrease in kinetic energy as temperature increases
Answer=B
In the kinetic molecular theory of gas behavior, particles of a gas tend to move
______ and collisions between them are
A) rapidly, rare
B) slowly, rare
C) rapidly, elastic
D) slowly, elastic
E) slowly, unusual
Answer= C
The boiling point of water at sea level is 100° C. At higher altitudes, the boiling
point of water will be
A) lower, because temperatures are lower.
B) lower, because the atmospheric pressure is lower.
C) higher, because the altitude is greater.
D) higher, because there are fewer water molecules in the air.
E) The same, because water always boils at 100° C
Answer= B
What unit of temperature is used in gas law calculations?
A) Fahrenheit
B) Celsius
C) Kelvin
, D) either Celsius or Fahrenheit
E) either Celsius or kelvin
Answer= C
In the kinetic molecular theory of gas behavior, the assumption is made of gas
molecules
A) move rapidly in random directions.
B) are attracted to each other by strong forces.
C) are close together in their container
D) move with a kinetic energy equal to their centigrade temperature
E) occasionally come to rest
Answer= A
In the kinetic molecular theory of gas behavior, the distance between gas
molecules is assumed to be ________ the diameter of the gas molecules
A) 22.4 times
B) small relative to
C) dependent on
D) approximately the same as
E) large relative to
Answer= E
The pressure exerted by a gas on its confined is directly proportional to
A) the volume of the container.
B) the mads of the individual has molecules
C) the Celsius temperature of the gas
D) the number of molecules of gas in the sample
E) the Fahrenheit temperature of the gas
Answer= D
As you rise higher in Earth's atmosphere, the atmospheric pressure
A) increases
B) decreases
C) remains the same
Answer=B
The air pressure on a rainy day is usually __________ air pressure on a sunny
day.
A) higher than
B) lower than
C) the same as
Answer= B
The force of gas particles against the walls of the container is called
A) pressure
B) volume
C) temperature
D) quantity of gas
E) density
Answer= A
The unit of 1 atmosphere used to describe the pressure of a gas is equal to
