Nature Of Matter

Question 1

Matter

Answer 1

Anything occupying space and having mass

Question 2

Kinetic Theory of Matter

Answer 2

States matter is composed of particles which
-Have intermolecular spaces between them
-Attract each other with force
-Are in continuous random motion

Question 3

Change of State

Answer 3

The phenomenon of change from on state of matter to another

Question 4

Melting (Fusion)

Answer 4

The process of change of state from solid to liquid on absorbing heat at a particular temperature

Question 5

Vaporisation (Evaporation)

Answer 5

The process of conversion of a substance from the liquid state to the gaseous state at any temperature below its boiling point

Question 6

Liquification

Answer 6

The process of change from the gaseous state to the liquid state at a particular temp

Question 7

Solidifiaction (Freezing)

Answer 7

The process of change of matter from the liquid state to the solid state at a particular temp

Question 8

Sublimation

Answer 8

The change of state of a substance directly from solid to gas without a changing into liquid state

Question 8

Boiling Point

Answer 8

The constant temperature at which a liquid becomes a gas upon absorbing heat at 1 atm

Question 9

Deposition

Answer 9

The change of state of a substance directly from gas to solid without a changing into liquid state

Question 9

Melting Point

Answer 9

The constant temperature at which a solid becomes liquid upon absorbing heat at 1 atm

Question 10

Liquification Point

Answer 10

The constant temperature at which a gas becomes a liquid at 1atm

Question 11

Freezing Point

Answer 11

The constant temperature at which a liquid changes into a solid by giving out heat energy at 1 atm

Question 12

Interconversion of Matter Based on Kinetic Theory: Melting

Answer 12

Particles of a solid become free from fixed position and get converted into a liquid by gain of free energy

Question 13

Interconversion of Matter Based on Kinetic Theory: Vaporization

Answer 13

Particles become completely free and convert into gas/vapor by gain of energy

Question 14

Interconversion of Matter Base on Kinetic Theory: Liquification

Answer 14

Particles slow down, come close and get converted into a liquid by loss of energy

Question 15

Interconversion of Matter based on Kinetic Theory: Solidification/Freezing

Answer 15

Particles slow downL, come close and get converted into a solid by loss of energy

Question 16

Law of conservation of Matter

Answer 16

Matter can neither be created nor destroyed in a chemical reaction
-Total mass of reaction = total mass of products