Advertisements
Advertisements
प्रश्न
Give reasons:
A gas can fill the whole vessel in which it is enclosed.
Advertisements
उत्तर
Because, in gases, the molecules are free to move.
They are not stuck to each other and the intermolecular force of attraction is least in the gases. So the gas almost filled the whole vessel in which it is enclosed.
APPEARS IN
संबंधित प्रश्न
Give two example of the following:
The substances which do not change their state on heating.
What are fluids ? Give two examples.
What are the two conditions for the interconversion of states of matter ?
Write whether the following statement is true or false.
If the container in which a gas is collected has an opening, the gas will flow out and spread itself indefinitely.
Match the following
| Column A | Column B |
| (a) Solids | (1) Can flow in all directions. |
| (b) Sublimation | (2) The temperature at which a liquid changes into its gaseous state. |
| (c) Boiling point | (3) Any number of free surfaces. |
| (d) Gases | (4) Gaps between particles. |
| (e) Intermolecular space | ro(5) Change of state fm solid to gas. |
Define the following term of Molecule .
Give reasons for the following:
A bottle of perfume on opening evolves an odour which can be sensed over a long distance.
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to free surfaces.
Explain the term ‘interconversion of matter’ with ice as a starting material.
Mention any two characteristics of the particles of matter.
