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What Do You Mean by the Inter-molecular Spaces ? How Do They Vary in Different States of Matter ? - ICSE Class 8 - Physics

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Question

What do you mean by the inter-molecular spaces ? How do they vary in different states of matter ?

Solution

INTER-MOLECULAR SPACES “The spacing between the molecules of matter is called Inter-molecular spaces.”
The inter-molecular spaces is less in solids more in liquids and still more in gases.
Explanation of inter-molecular space : Take water in a measuring cylinder say upto 80 ml. mark. Add 10 gm of salt to it. The volume in cylinder should increase. On dissolving salt we find volume remains same i.e. upto 80 ml mark. This is because there are spaces in water molecules and salt molecules occupy these spaces and volume remains the same.

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Solution What Do You Mean by the Inter-molecular Spaces ? How Do They Vary in Different States of Matter ? Concept: Kinetic Theory of Matter.
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