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प्रश्न
Explain the term ‘Interconversion of matter’. With reference to ice, water, and water vapour show diagrammatically the change of state of matter from solid to liquid to gaseous and back to the original state.
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उत्तर
INTERCONVERSION OF MATTER:
“Change of state of matter from one state to another state and back to its original state is called inter-conversion of matter.”
The diagram showing the Change of State of Matter:
(a) ICE TO WATER (MELTING): Conversion of a solid into a liquid on heating
e.g. ice to water.
(b) WATER TO WATER VAPOUR (VAPORISATION): Conversion of a – liquid into vapours (or gas) on heating
e.g. water to water vapour.
(c) WATER VAPOUR TO WATER (LIQUEFACTION or CONDENSATION): Conversion of VAPOUR (or gas) into a LIQUID on cooling
e.g. water vapour to water.
(d) WATER TO ICE (SOLIDIFICATION OR FREEZING): Conversion of a LIQUID into a SOLID
e.g. water to ice.
संबंधित प्रश्न
Give reasons:
A wooden table should be called a solid.
Give two reasons to justify that An iron almirah is a solid.
What are fluids? Give two examples
Fill in the blanks:
Any matter which has a definite ______ but no definite shape is called a ______.
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles are quite close together
Describe simple experiments to prove that gases have no definite volume or shape.
State the property of the following substance.
Magnesium reacts with dilute hydrochloric acid, liberating hydrogen gas.
State the property of the following substance.
Manganese dioxide, a catalyst which alters the rate of a chemical reaction is black in colour.
Strainer is a kind of sieve which is used to separate a liquid from solid.
Complete the Analogy:
Solids: incompressible:: Gas: ______.
