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प्रश्न
What are fluids ? Give two examples.
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उत्तर
Substances that can flow are called fluids, e.g. gases (oxygen, hydrogen), liquids (water, petrol, sulphuric acid).
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संबंधित प्रश्न
Define: Solid
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.
Define the following term Element .
Differentiate between the following.
Atoms and Molecules .
Write whether the following statement are true or false.
There is no difference between evaporation and boiling.
Describe a simple experiment to illustrate the existence of inter-molecular spacing.
What do you mean by inter-molecular forces?
Fill in the blank
The molecules are at a greater distance in ........ compared to liquids.
Give a reason for the following:
Globules of mercury kept in a petri dish, which is shaken slowly, come together forming a big globule.
