Q1) According to the kinetic theory of gases, gas molecules are in constant:

A) Motion

B) Rest

C) Compression

D) Expansion


Q2) The kinetic energy of a gas molecule is directly proportional to its:

A) Mass

B) Volume

C) Temperature

D) Pressure


Q3) The average kinetic energy of gas molecules is directly proportional to the:

A) Volume of the container

B) Mass of the gas

C) Square of the velocity of the molecules

D) Density of the gas


Q4) Which gas law is explained by the kinetic theory of gases?

A) Boyle's law

B) Charles's law

C) Avogadro's law

D) All of the above


Q5) According to the kinetic theory of gases, gas molecules exert pressure on the walls of the container due to:

A) Collisions with each other

B) Collisions with the walls

C) Gravitational attraction

D) Magnetic repulsion


Q6) The root-mean-square speed of gas molecules is directly proportional to the:

A) Temperature of the gas

B) Pressure of the gas

C) Volume of the container

D) Density of the gas


Q7) The average kinetic energy of gas molecules at a given temperature is the same for:

A) All gases

B) Only noble gases

C) Only diatomic gases

D) Gases with the same molar mass


Q8) Which of the following factors affects the average kinetic energy of gas molecules?

A) Number of molecules

B) Nature of the gas

C) Temperature

D) Pressure


Q9) In which state of matter do particles have the highest kinetic energy?

A) Solid

B) Liquid

C) Gas

D) Plasma


Q10) According to Graham's law of diffusion, the rate of diffusion of a gas is inversely proportional to the:

A) Square root of its molar mass

B) Square of its molar mass

C) Cube root of its molar mass

D) Cube of its molar mass


Q11) The average distance between gas molecules in a container is:

A) Large compared to the size of the molecules

B) Small compared to the size of the molecules

C) Equal to the size of the molecules

D) Equal to the volume of the container


Q12) According to the kinetic theory of gases, which factor affects the rate of effusion of gas molecules?

A) Pressure

B) Volume

C) Temperature

D) Density


Q13) What is the relationship between the average kinetic energy of gas molecules and the Kelvin temperature?

A) Directly proportional

B) Inversely proportional

C) No relationship

D) Exponential relationship


Q14) Which of the following gases is expected to have the highest average kinetic energy at the same temperature?

A) Hydrogen (H2)

B) Nitrogen (N2)

C) Oxygen (O2)

D) Argon (Ar)


Q15) According to the kinetic theory of gases, gas molecules move in:

A) Straight lines

B) Circular paths

C) Random directions

D) Elliptical orbits


Q16) The pressure exerted by an ideal gas is directly proportional to the:

A) Number of molecules

B) Volume of the container

C) Temperature of the gas

D) Density of the gas


Q17) Which of the following statements is true about the average kinetic energy of gas molecules at absolute zero temperature?

A) It is zero.

B) It is finite.

C) It is maximum.

D) It is constant.


Q18) Which gas law is not explained by the kinetic theory of gases?

A) Boyle's law

B) Charles's law

C) Gay-Lussac's law

D) Dalton's law


Q19) The ratio of the root-mean-square speed of two gases is inversely proportional to the:

A) Ratio of their molar masses

B) Square of the ratio of their molar masses

C) Cube root of the ratio of their molar masses

D) Square root of the ratio of their molar masses


Q20) Which of the following factors does not affect the average kinetic energy of gas molecules?

A) Temperature

B) Mass of the molecules

C) Pressure

D) Nature of the gas