Particles of some matter are in constant motion


 
 
Concept Explanation
 

Particles of some matter are in constant motion

       The particles of some matter are in constant motion

Put an incense stick (agarbatti) in a corner of the room, you won’t get its smell from a distance. Now light the incense stick using a matchstick, you can get the small even at a certain distance. This can be explained as particles of perfume present in the incense stick freely mixed up with particles of air and have spread across the room. If the particles were not moving, the smell of incense stick would never have reached you.

Diffusion: The particles of matter have a tendency to diffuse, i.e. to intermix on their own with each other. They do so by getting into the spaces between the particles. The intermixing of particles of two different types on their own is called diffusion.

The particles of matter are in state of continous motion. This suggests that they possess some energy, called the ‘kinetic energy’. As the temperature rises, the kinetic energy of the particles increases and hence particles move faster

Sample Questions
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Question : 1

The kinetic energy of the particles increases on increasing the ________________

Right Option : C
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Question : 2

According to the kinetic theory, particles of matter are in __________________

Right Option : C
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Explanation
Question : 3

Which of the following statement is not true regarding the characteristic of matter?

Right Option : C
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