Advertisements
Advertisements
प्रश्न
One litre of water has 6.02 × 1026 molecules. Estimate the size of a molecule.
Advertisements
उत्तर
The size of a particle (or molecule of matter is very small. 1 litre of water has 6.02 × 1026molecules, so the volume of a particle of water is
`(10^-3"m"^3)/(6.0 × 10^26)` = 1.6 × `10^-30 "m" ^3`.
Thus the diameter of a water molecule is nearly 1.27 × 10−9 metre.
APPEARS IN
संबंधित प्रश्न
Define: Solid
Name the terms for the force of attraction between the molecules of matter.
Differentiate between the following.
Liquids and gases .
Fill in the blank
The temperature at which a liquid boils is called the _________point of that liquids
Write true or false for each statement. Rewrite the false statement correctly.
Solids can be compressed easily.
What do you mean by inter-molecular forces?
What are fluids? Give two examples.
What is the relation between intermolecular space and intermolecular force?
Define Matter.
Match the column.
| Column A | Column B |
| 1. iron and gold | a. molecules are very far apart |
| 2. melting | b. pure substance |
| 3. intermolecular space | c. non-metals |
| 4. compound | d. the space between the molecules |
| 5. gases | e. changes from solid to liquid |
| f. metals |
