A liquid can easily change its shape but a solid can not because
(a) the density of a liquid is smaller than that of a solid
(b) the forces between the molecules are stronger in solid than in liquids
(c) the atoms combine to form bigger molecules in a solid
(d) the average separation between the molecules is larger in solids.
Answers
Answer ⇒ Option (b).
Explanation ⇒ The shape will change only if the molecules have less inter molecular forces among there molecules which allows them to move freely.
In case we are talking about a solid, the inter molecular forces of attraction between the molecules are so strong that they cannot move easily. Thus, the shape of solid can not be easily changed.
Shape of solid can be only changed when we apply some hard force on it.
Thus among the given options, option (b). is absolutely correct.
A liquid can easily change its shape but a solid can not because (b). the forces between the molecules are stronger in solid than in liquids.
Similarly, gases can move freely, hence, there shape also changes. In what container we kept, there shape becomes like that only.
Hope it helps.
Answer:
A liquid can easily change its shape but a solid cannot because :
( b ). The forces between the molecules are stronger in solid than in liquids
Explanation :
In liquid, the force of attraction between molecules is not much stronger but they are not totally free to move like gases. The intermolecular forces in liquid have less strength, that's why liquid molecules are able to move freely but confinely.
In solids, they are rigid due to strong intermolecular forces and definite shape and volume due to rigidity and incompressible nature. The particles in solids are not free to move and they are crystallised in a perfect geometrical symmetric shape.
Types of solids :
1. Molecular solids
i. Polar, Non - Polar solids
ii. Hydrogen bonded
2. Ionic solids
3. Metallic solids
4. Covalent / Network Solids.