Question

Pls answer my question and get maximum points

Tell me the answer i will mark you brainliest

Answer 1

Answer:

1.mercury and water...

2. negligible...

3. rubber...

4. high density , very evident..

(ii)1. solids= high intermolecular force of attraction.

liquid = less than solid but more that gas.

2. liquid = it generally flows in a particular direction unless the path cannot changed.

gases= flows freely.

(iv) solid= iron,wood,coal.

liquid =juice,milk,glycerine.

gas= carbon dioxide, oxygen.

(iii)1. ans is in the image...

2. because the particle of solid are closely packed.

3. rigid,hard,fixed shape,does not flow,fixed volume.

hope it helped ...

Answer 2

Questions with Answers :-

☯ Fill in the blanks :-

★ A substance that exists in all three states is water.

• As solid water can be converted to liquid on heating and liquid water can also be converted to gas on heating.

★ In solid, the intermolecular space is maximum.

• As particles in solid are tightly packed, and there exists more kinetic energy, whereas it is less in liquids and the minimum is gases.

★ Semi solid changes its shape when force is applied and regain its shape when force is removed.

• Examples are rubber band, sponge.

★ Solid have high density and linear thermal expansion.

• Solids have highest density compared to liquids and gases, due to their arrangement of particles, they have linear expansion that is a change in length of the body when exposed to temperature.

☯ Differentiate the following :-

★ Solids and Liquids (Intermolecular force of attraction)

• Solids have the highest intermolecular force of attraction and its less in liquids due to the arrangement of particles, in a solid molecules are tightly packed whereas in liquids, they are a bit loosely packed.

★ Liquids and Gases (Movement of particles)

• In liquids the particles or the molecules move a bit rigid, they are not that loosely and freely moved because molecules are tightly packed compared to gases, whereas in gases, the particles move very freely, as particles are very very loosely packed and the force of attraction between them is very low.

☯ Answer the following :-

★ Diagram showing arrangement of particles in a solid.

• Go through the attachment.

★ Why do solids have a definite shape?

• Solids have a definite shape, size, volume because the particles are tightly packed and held together in very tight bonds, the particles do not have freedom to move freely and they cannot vibrate.

★ State five properties of solid.

1. Definite shape.
2. Definite volume.
3. Less compressible.
4. Molecules are tightly packed.
5. High rigidity.

☯ Classify the following to solids, liquids gases :-

• Milk, glycerin, iron, air, wood, juice, oxygen, coal, carbon dioxide.

➙ Solids :-

1. Iron
2. Wood
3. Coal

➙ Liquids :-

1. Milk
2. Glycerin
3. Juice

➙ Gases :-

1. Oxygen
2. Carbon dioxide
3. Air