Matter and its Components

Question 1

anything that has mass and volume. made up of particles.

Answer 1

matter

Question 2

refers to the amount of matter present in the material

Answer 2

mass

Question 3

mass times pull of gravity

Answer 3

weight

Question 4

states of matter

Answer 4

solid, liquid, gas, plasma

Question 5

means middlelies between the liquid and crystalline states

Answer 5

plasma/mesophase

Question 6

Early Indian philosophers classified matter in the form of 5 basic elements: air, earth, fire, sky, and water called what?

Answer 6

Panch Tatva

Question 7

five basic elements

Answer 7

earth, fire, water, sky, and air

Question 8

On the basis of chemical composition, matter is classified as

Answer 8

pure substances and mixtures

Question 9

pure substances may be what

Answer 9

elements or compounds

Question 10

mixtures may be what

Answer 10

homogeneous and heterogeneous

Question 11

physical nature of matter

Answer 11

made up of particles
particles are very tiny
particles have space between them
particles are continuously moving
particles attract each other

Question 12

properties of solids

Answer 12

have definite shape and fixed volume
space is minimum
force of attraction between particles is maximum
movement is minimum
least compressible
rate of diffusion is least

Question 13

properties of liquid

Answer 13

no definite shape but have fixed volume
space between the particles is intermediate
force of attraction is intermediate
less compressible
diffusion is more than solids

Question 14

properties of gas

Answer 14

no definite shape and volume
space is maximum
force of attraction is minimum
movement of particles is maximum
most compressible
diffusion is more than solids and liquids

Question 15

solid to liquid

Answer 15

melting

Question 16

liquid to solid

Answer 16

freezing

Question 17

liquid to gas

Answer 17

vaporization

Question 18

gas to liquid

Answer 18

condensation

Question 19

gas to solid

Answer 19

deposition

Question 20

solid to gas

Answer 20

sublimation

Question 21

change of liquid into vapor at any temperature below its boiling point

Answer 21

evaporation

Question 22

way of determining the number of variables necessary to define a system

Answer 22

gibb’s phase rule

Question 23

rate of evaporation depends upon

Answer 23

surface area, temperature, humidity, and wind speed

Question 24

the amount of heat energy required to change 1kg of a liquid into gas

Answer 24

latent heat of vaporization

Question 25

amount of heat energy required to change 1kg of solid into liquid

Answer 25

latent heat of fusion