Advertisements
Advertisements
Question
Even two or three crystals of potassium permanganate can impart colour to a very large volume of water. Which characteristic of particles of matter is illustrated by this observation?
Advertisements
Solution
When crystals of potassium permanganate are placed at the bottom of a beaker of water, water in the whole beaker turns pink on its own. This process represents that matter is made up of small particles which diffuse from a region of higher concentration to a region of lower concentration. The phenomenon involved is known as diffusion.
APPEARS IN
RELATED QUESTIONS
Fill in the blank:
The change of a solid into a liquid is called melting or................
What are fluids ? Give two examples.
A kind of matter which can sublinje is
- water
- plastic
- milk
- iodine
Write your observation and conclusion for the following
When one of the balloons suspended to the metre scale is punctured while other remains inflated ?
Write true or false for each statement. Rewrite the false statement correctly.
If the intermolecular space is more than the intermolecular force will be weaker.
Each of the three states of matter has mass. Explain with the help simple experiments – that each state of matter has mass.
State in which of the three states of matter:
The space between the particles is minimum.
Give a reason why –
Liquids have a definite volume but no definite shape.
Give a reason why:
Gases have no definite volume and no definite shape.
Match the characteristics of the three states of matter in List I with their correct answer from List II.
| List I | List II |
| 1. Have no definite shape, volume or free surface | A: Solids only |
| 2. Are highly compressible and least rigid | B: Liquids only |
| 3. Have a definite volume, no definite shape and are slightly diffusable | C: Gases only |
| 4. Are not compressible and have no diffusability | D: Liquids and gases only |
| 5. Have mass and occupy space | E: Solids and gases only |
| F: Solids, liquids and gases |
