Advertisements
Advertisements
प्रश्न
Give reason :
When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar.
Advertisements
उत्तर
This shows that gases can fill up all the space that they get, and they have neither a fixed shape nor a fixed volume. They have no free surfaces, either.
APPEARS IN
संबंधित प्रश्न
Define Intermolecular space.
Define the following term Element .
Give two examples for the following :
Substances that are rigid and not compressible.
Select the correct alternative
The inter-molecular forces are strongest in
Match the following columns
| Column A | Column B | ||
| A. | A molecule is composed of | i. | does not exist free in nature. |
| B. | Ice, water and water vapour | ii. | can vibrate only up to about `10^-10`m from their mean position. |
| C. | An atom | iii. | atoms. |
| D. | Gases | iv. | are the three states of water. |
| E. | The molecules of a solid | v. | occupy space |
One litre of water has 6.02 × 1026 molecules. Estimate the size of a molecule.
If an object weighs 6 kg on earth. What will be its weight on moon?
Water, mercury and bromine are similar to each other, because three are ______.
Identify the odd term out and explain.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
