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Which of the following is the best way to show that particles of matter are constantly moving?
‘Diffusion’ and ‘Brownian motion’ gives us the evidence that particles of matter are constantly in random motion.
How do you prove that matter is made up of particles based on the activity?
Answer Expert Verified
- take crystals of KMNO4 and dissolved them in 100 ml of water.
- take 10 ml from this solution and dissolve in 90 ml of water.
- take 10 ml from this solution and dissolve in 90 ml of water.
- repeat this step 4-5 times.
- you will observe that colored water still after 4-5 times.
Why are particles constantly moving?
Particles on Earth move mostly because of heat. Any material has a temperature, which is related to the energy of the atoms and molecules that make it up. There are also particles in space, moving at high speeds. They just keep going because there is practically nothing to slow them down.
What says the tiny particles in all matter are in constant motion?
The kinetic theory of matter (particle theory) says that all matter consists of many, very small particles which are constantly moving or in a continual state of motion. The particles might be atoms, molecules or ions.
Which state of matter has particles in constant motion?
liquid
Because the particles of a liquid are in constant motion, they frequently collide with each other. Each collision also causes energy to be transferred, and when enough energy is transferred to particles near the surface they may be knocked completely away from the sample as free gas particles.
How can you prove that particles of matter are constantly moving?
If, however, the particles of gases produced by the burning of incense stick and the particles of air were not moving, then the fragrance of incense stick could not spread in the whole room quickly.
What are the particles that make up matter?
The particles which make up matter are atoms or molecules. Our body, chair, table, book etc. all are made up of particles. The evidence of the existence of particles in matter and their motion comes from the experiments on diffusion i.e. mixing of different substances on their own and Brownian motion.
Why do particles move faster in one direction than another?
Particles move rapidly in all directions but collide with each other more frequently than in gases due to shorter distances between particles. With an increase in temperature, the particles move faster as they gain kinetic energy, resulting in increased collision rates and an increased rate of diffusion.
How does temperature affect the movement of particles?
The particles are held together too strongly to allow movement from place to place but the particles do vibrate about their position in the structure. With an increase in temperature, the particles gain kinetic energy and vibrate faster and more strongly.