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The Solid State
Why are solids rigid?
Solids are rigid because the internuclear distance between the molecules of a solid are very less and closely packed and their positions are fixed due to the strong forces of attraction between them.
Why do solids have a definite volume?
A solid have a definite volume because the inter molecular distance between its molecules are fixed.
Classify the following as amorphous or crystalline solids: Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper.
Amorphous solids: Polyurethane, teflon, cellophane, polyvinyal chloride, fibre glass.
Crystalline solids: naphthlene, benzoic acid, potassium nitrate, copper.
Why is glass considred a super-cooled liquid?
Glass is amorphous solids and have a tendency to flow, though very slowly. Therefore, these are called pseudo solids or super cooled liquids .
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Mock Test Series
Mock Test Series