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प्रश्न
Name the phenomenon which cause the following change.
Conversion of water into steam.
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उत्तर
Conversion of water into steam is boiling.
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संबंधित प्रश्न
The process of a gas converting directly into solid is called vaporization.
At high altitudes, water boils above 100° C.
Fill in the blank
In a solid, the molecules ............................................ but they remain at their fixed positions.
Fill in the blank
A solid is ............ rigid.
Distinguish between solids, liquids, and gases on the basis of their following properties :
(a) compressibility
(b) fluidity
(c) rigidity
(d) expansion on heating
Give a reason for the Pure substances have fixed melting or boiling points.
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.
Write whether the following statement is true or false.
The intermolecular force of attraction is the weakest in gases.
Give two examples for of the following
Substances which are rigid and not compressible.
State the property of the following substance.
Hydrogen sulphide gas has a strong rotten egg odour.
