Kinetic Energy of Particles of Matter

Q.

How does temperature affect the kinetic energy of particles?

Q.

With reference to the liquid state of matter-answer the following

The heat energy supplied to the liquid is absorbed by its molecule & stored as which form of energy.

Q.

How does the movement of particles get affected by an increase in temperature?

Q.

On increasing the temperature of a substance, the kinetic energy of its particle ___ (fill increases/decreases)

Q.

Gas is a collection of randomly moving particles. The particles speed up if we reduce the temperature.

1. True

2. False

Q. Assume a gas stored in a container at room temperature. Identify the physical parameters affected by the motion of the particles of gas inside the container.

1. Kinetic Energy
2. Pressure
3. Potential Energy
4. Temperature

Q. On increasing the temperature of a substance, the kinetic energy of its particles ___

Q.

Which one of the following sets of phenomena would happen faster if the temperature is increased?

1. Diffusion and solidification

2. Evaporation and diffraction

3. Evaporation and diffusion

4. Diffusion and diffraction

Q.

Particles of matter move because of ___ energy

1. gravitational

2. chemical

3. potential

4. kinetic

Q. Rate of which one of the following sets of phenomena would increase on raising the temperature?

1. Diffusion, evaporation, compression of gases
2. Evaporation, compression of gases, solubility
3. Evaporation, diffusion, expansion of gases
4. Evaporation, solubility, diffusion, compression of gases

Q. 28. Is evaporation and vapourisation are same if not what are their differences What us latent heat of vapourisation and evaporation also latent heat of fusion

Q.

Give a reason for the following statement:

All three states of matter expand on heating.

Q. it is observed 1000 water droplets , each ofdiameter 10 to the power -6 cm (10-6) .combine to form one large spherical water drop.surface tension of water is 7.2 10-2 N/m , then calculate the ratio between the excess pressures of the one small drop and the large drop so formed.

Q.

The random motion of particles decreases on supplying energy.

1. True

2. False

Q.

Q.

As we increase the temperature, the kinetic energy of the particles _________.

1. increases
2. does not change
3. decreases
4. first decreases and then increases

Q. Assume a gas stored in a container at room temperature. Identify the physical effect(s) that is/are caused by the motion of the particles of gas inside the container.

1. Kinetic Energy
2. Pressure
3. Potential Energy
4. Temperature