Advertisements
Advertisements
Question
Give two examples for of the following
Substances which do not change their states.
Advertisements
Solution
Paper, sugar.
APPEARS IN
RELATED QUESTIONS
Boiling takes place at all temperatures.
Classify the following into solids, liquids, and gases. Oxygen, milk, common salt, wax, stone, water vapour, carbon-dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
Why do solids, liquids, and gases differ in their physical states?
Give a reason for the Pure substances have fixed melting or boiling points.
Fill in the blank
When a gas is cooled, its molecules .............. energy.
Name the three states of matter and define them.
State what would you observe if
(a) sugar is added to pebbles take in a plastic beaker
(b) sand is added to glass balls in a beaker. What would you conclude from this imaginative demonstration?
Match the characteristics of the three states of matter in List I with their correct answer from List II.
| List I | List II |
| 1. Are highly rigid and have a definite shape | A: Solids and gases only |
| 2. Have no definite shape | B: Solids only |
| 3. Have definite volume but no definite shape | C: Liquids and gases only |
| 4. Are highly compressible and least rigid | D: Gases only |
| 5. Have no definite volume | E: Solid, liquids and gases |
| 6. Have no definite shape and volume |
F: liquids only |
| 7. Occupy space | G: Solids and liquids only |
| 8. Are not compressible | |
| 9. Are slightly compressible | |
| 10. Have mass |
Gas like the state of Matter that exists at extremely cold temperatures used in the field of cryogenics.
What are the similarities between a gas and a liquid?
