MCQs on Kinetic Energy Chapter -13

Multiple Choice Questions & Answers on Kinetic Energy

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A. The size of the atom is

1. 10 -8 m
2. 10 -10 m
3. 10 -9 m
4. 10 -12 m

Answer 2

B. The average distance a molecule moves without a crash is called

1. Mean free path
2. Free Path
3. Total Path
4. Collision Path

Answer 1

C. Boyle’s Law States that:

1. With Pressure constant, temperature of fixed mass of gas changes directly with volume
2. With Pressure constant, temperature of fixed mass of gas changes inversely with volume
3. With temperature constant, temperature of fixed mass of gas changes directly with volume
4. With temperature constant, temperature of fixed mass of gas changes inversely with volume

Answer 4

D. Charles Law States that:

1. For a given pressure, the volume of a gas is directly proportional to its absolute temperature T
2. For a given pressure, the volume of a gas is indirectly proportional to its absolute temperature T
3. For a given temperature, the pressure of a gas is indirectly proportional to its absolute temperature T
4. For a given temperature, the pressure of a gas is indirectly proportional to its absolute temperature T

Answer 1

E. The internal energy of an ideal gas is based solely on 

1. Pressure
2. Volume
3. Pressure or Volume
4. Temperature

Answer 4

F. Dalton’s law of partial pressure states that:

1. The mean kinetic energy of the molecules of gases in equilibrium  is not equal
2. The mean kinetic energy of the molecules of gases in equilibrium  is equal
3. The mean kinetic energy of the molecules of gases in equilibrium is inversely proportional
4. The mean kinetic energy of the molecules of gases in equilibrium is directly proportional

Answer 2

G. Maxwell Distribution of gases

1. Indicate the velocities of molecules in a fixed pressure
2. Indicate the velocities of molecules in a fixed volume
3. Indicate the velocities of molecules in a fixed mass
4. Indicate the velocities of molecules in a fixed temperature

Answer 3

H.  Choose the correct statement 

1. The speed of diffusion of gases is directly proportional to masses
2. The speed of diffusion of gases is directly proportional to square root of masses
3. The speed of diffusion of gases is inversely  proportional to square root of masses
4. The speed of diffusion of gases is inversely proportional to square root of masses

Answer 4

I. …….. is a monatomic gas and its modules have only  ________ degrees of freedom

1. Nitrogen, Translational
2. Oxygen, Translational
3. Argon, Translational
4. Argon, Non – Translational

Answer 3

J. One molecule of Oxygen has 

1. Two Translational Degrees of Freedom and Two Rotational Degrees of Freedom
2. Three Translational Degrees of Freedom and Two Rotational Degrees of Freedom
3. One Translational Degree of Freedom and Two Rotational Degrees of Freedom
4. Four Translational Degrees of Freedom and Two Rotational Degrees of Freedom

Answer 2

K. A Polyatomic molecule has

1. 3 translational degrees of freedom, 3 rotational degrees of freedom, and some vibrational modes
2. 1 translational degrees of freedom, 1 rotational degree of freedom and some vibrational modes
3. 2 translational degrees of freedom, 3 rotational degrees of freedom, and some vibrational modes
4. 2 translational degrees of freedom, 2 rotational degrees of freedom and some vibrational modes

Answer 1