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प्रश्न
What do you mean by the change of state of matter?
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उत्तर
The change in the state of matter of a substance from solid to liquid or from liquid to gas is brought by imparting heat energy to it at a constant temperature.
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संबंधित प्रश्न
Water evaporates only at 100°C.
The process of a gas converting directly into solid is called vaporization.
Describe the molecular model for a liquid. I-low does it explain that a liquid has no definite shape, but has a definite Volume?
Define interconversion of states of matter.
Fill in the blank
Water is a matter because it has ............ and occupies ............
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.
Multiple choice question.
The process by which a solid changes into a liquid is called
Match the following
| Column A | Column B | ||
| a | Solids | 1 | Can flow in all directions |
| b | Sublimination | 2 | The temperature at which a liquid changes into its gaseous state |
| c | Boiling Point | 3 | Can have any number of free surfaces |
| d | Gases | 4 | Gaps between particles |
| e | Intermolecular space | 5 | Change of state from solid to gas |
Complete the statement given below by selecting the correct word.
____ is an example of a crystalline substance.
What are the similarities between a gas and a liquid?
