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प्रश्न
True or false.
If the container in which a gas is collected has an opening, the gas will flow out and spread itself indefinitely.
पर्याय
True
False
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उत्तर
True
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संबंधित प्रश्न
Why do solids, liquids and gases differ in their physical state?
Name the terms for the process due to which a solid directly changes into its vapours.
What are fluids ? Give two examples.
For the following statements, say whether it describes a solid, a liquid or a gas.
Particles are quite close together
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 |
Describe a simple experiment to illustrate that molecules are not at rest, but they constantly move.
Write true or false for the statement. Rewrite the false statements correctly.
Matter cannot exist in different states.
Give two examples.
Liquid element
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
Write scientific reason.
Lemon sherbat has a sweet, sour and salty taste and it can be poured in a glass.
