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प्रश्न
Fill in the blank:
The process in which a solid directly changes into a gas is called ....................
उत्तर
The process in which a solid directly changes into a gas is called sublimation.
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संबंधित प्रश्न
Define interconversion of states of matter. What are the two factors responsible for the change of states of matter?
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles move about very quickly.
Write whether the following statement are true or false.
The intermolecular force of attraction is the weakest in gases.
A piece of chalk can be broken into small particles by hammering but a piece of iron cannot be taken into small particles by hammering. Which characteristic of the particles of matter is illustrated by these observations?
Bromine particles are almost twice as heavy as chlorine particles. Which gas will diffuse faster; bromine (vapour) or chlorine? Explain your answer.
Give reasons for the following:
Solids have a definite shape and are highly rigid while gases have to definite shape and are least rigid.
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to compressibility.
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to density.
State in which of the three states of matter:
The movement of the particles is neither about their own positions nor in any random direction.
State in which of the following examples ie. a piece of wood, water, light gas is the Inter-particle space maximum.
