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प्रश्न
Fill in the blank
The temperature at which a liquid boils is called the ................. point of that liquid.
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उत्तर
The temperature at which a liquid boils is called the boiling point of that liquid.
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संबंधित प्रश्न
A gas has neither a definite volume nor a definite shape. Describe the molecular model to explain it.
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?
Fill in the blank
Liquids have no definite ...........
Write whether the following statement is true or false.
The intermolecular force of attraction is the weakest in gases.
Name the phenomenon which cause the following change.
Formation of water vapour from water.
What is meant by the inter-molecular forces of attraction ?
All kinds of matter
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?
State the correct term from A, B, C, D, E, or F in List II which represents the change of state of matter or its relevant property from List I.
| List I | List II |
| 1. Solid 'X' to a Liquid 'X' | A: Condensation |
| 2. Liquid 'Y' to its vapour 'Z' | B: Vaporization |
| 3. 'Z' to 'Y' | C: Melting |
| 4. 'Y' to 'X' | D: Freezing |
| 5. The temperature at which 'Y' changes to 'Z' | E: Melting point |
| F: Boiling point |
