Assumptions of KTG

Q. At room temperature, the rms speed of the molecules of certain diatomic gas is found to be 1930 m/s. The gas is

1. 
2. 
3. 
4. 

Q. Which one of the following is not an assumption of kinetic theory of gases?

1. The volume occupied by the molecules of the gas is negligible.
2. The collision between the molecules are elastic.
3. The force of attraction between the molecules is negligible.
4. All molecules have same speed.

Q. In the rutherfordium scattering experiment , the number of alpha particles at an angle 60 degree is 12 per minute. The number of alpha particles per minute when scattered at an angle of 90 degree are a)160 b)10 c)6 d)3

Q.

Write an expression for the kinetic energy of an object.

Q.

Why is the average velocity of the molecules in a gas is zero?

Q. The average velocity of molecules of a gas of molecular mass $M$ at temperature $T$ is

1. $0$
2. $\sqrt{\frac{3RT}{M}}$
3. $\sqrt{\frac{8RT}{\pi M}}$
4. $\sqrt{\frac{2RT}{M}}$

Q.

According to the kinetic theory of gasses at absolute zero temperature

1. Water freezes

2. Liquid helium freezes

3. Molecular motion stops

4. Liquid hydrogen freezes

Q.

Why is the universe expanding?

Q.

Explain boiling process on the basis of kinetic theory of matter.

Q.

Bose-Einstein Condensate have

1. Very low kinetic energy

2. Low kinetic energy

3. High kinetic energy

4. Highest kinetic energy

Q.

What is the kinetic energy of an object?

Q.

What remains constant in Charles Law?

Q.

If two objects move at the same speed, the object with the _________ Mass will have more kinetic energy.

Q. Which of the following is not true according to Kinetic Theory of Gases ?

1. Ratio of volume of the gas to volume occupied by the molecules is negligible.
2. Molecules are in continuous motion.
3. Molecules have kinetic energy.
4. The system of molecules, either gains or looses energy during collisions.

Q.

Why is the kinetic energy of the particles in the liquid more than in solids?

Q.

If an objects velocity doubles, its kinetic energy will increase by factor of ______

Q.

How are gas particles described according to the kinetic molecular theory?

Q.

An early model for an atom considered it to have a positively charged point Nucleus of charge Ze, surrounded by a uniform density of negative charge up to radius R.the atom as a whole is neutral.for this model what is the electric field at a distance r from the nucleus?

Q.

How does the kinetic energy depend on mass? Explain with an example.

Q. In ideal gas, the collisions between particles and container walls are in-elastic collisions.

1. True
2. False

Q. According to kinetic theory of gases, monoatomic ideal gases have

1. translational kinetic energy
2. rotational kinetic energy
3. vibrational kinetic energy
4. all of the above

Q.

What will happen to the kinetic energy of a particle if it is heated?

Q.

Give reasons for the following:

A horse has more kinetic energy than a dog running at the same speed.

Q.

Which of these is true?

1. Dalton assumed that atoms are made up of electrons, protons, and neutrons

2. The alpha particles used in Rutherford's experiment are positively charged particles

3. In Rutherford's alpha scattering experiment, all of the alpha particles passed through the gold foil.

4. JJ Thomson determined the charge and mass of electrons

Q.

Which law states that the internal energy of a gas is a function of temperature?

Q.

Particles in a liquid have more ____________energy than particles in solid.

Q.

How many moles are present in 11·5 g of sodium?

Q. Which of the following is/are correct regarding the postulates of KTG?

1. Volume of the molecules of the gas is negligible compared to the volume of the container.
2. Molecules of the gas are in random motion.
3. Collisions of the molecules of the gas with the walls of container are inelastic.
4. Effect of gravity on the motion of the molecules is negligible.

Q.

Kinetic energy of molecules _______ with decrease in temperature.

Q. The fifth state of matter i.e. Bose-Einstein condensate was proved in:

1. 1991
2. 2001
3. 1995
4. 2005