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प्रश्न
Liquids generally have lower density as compared to solids. But you must have observed that ice floats on water. Find out why.
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उत्तर
- The mass per unit volume of a substance is called density (density = mass/volume). As the volume of a substance increases, its density decreases.
- Though ice is a solid, it has a large number of empty spaces between its particles, which are larger than the spaces between the particles of water.
- Thus, the volume of ice is greater than that of water. Hence, the density of ice is less than that of water. A substance with lower density than water can float on water. Therefore, ice floats on water.
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संबंधित प्रश्न
'A substance has definite volume but no definite shape'. State whether this substance is a solid, a liquid or a gas.
Why are gases so easily compressible whereas it is almost impossible to compress a solid or a liquid?
Which of the following is in a liquid state?
Water is a good example for all states of matter.
Complete the given analogy.
Solid : Table :: ________ : Water
Liquids have no fixed volume but have fixed shape.
A drop of water contains about ______ water particles.
Water particles have no space between them.
Liquid is affected by gravity less than anything.
Write scientific reason.
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