kpt

Question 1

arrangement of solid

Answer 1

very closely packed, regular

Question 2

arrangement of liquid

Answer 2

closely packed, irregular

Question 3

arrangement of gas

Answer 3

far apart, random

Question 4

attractive forces of solids

Answer 4

very strong

Question 5

attractive forces of liquids

Answer 5

strong

Question 6

attractive forces of gases

Answer 6

weak

Question 7

movement of solids

Answer 7

vibrating about their fixed positions

Question 8

movement of liquids

Answer 8

randomly at slow speeds, slipping and sliding over one another

Question 9

movement of gases

Answer 9

moving randomly at high speeds at any available space

Question 10

kinetic energy of solids

Answer 10

very low

Question 11

kinetic energy of liquids

Answer 11

low

Question 12

kinetic energy of solids

Answer 12

very low

Question 13

what happens to k.e when temp increases?

Answer 13

increase

Question 14

what happens to movement when temp increases?

Answer 14

absorb heat energy, move at faster speeds

Question 15

what happens to arrangement of particles when temp increases?

Answer 15

unchanged

Question 16

what happens to strength of attraction when temp increases?

Answer 16

unchanged

Question 17

what happens to k.e when temp decreases?

Answer 17

decreases

Question 18

what happens to movement when temp decreases?

Answer 18

particles release heat energy, move at slower speeds

Question 19

what happens to arrangement of particles when temp decreases?

Answer 19

unchanged

Question 20

what happens to strength of attraction when temp decreases?

Answer 20

unchanged

Question 21

what happens to kinetic energy during processes that involve heat gain?

Answer 21

k.e remains constant until the state change is complete

Question 22

what happens to movement of particles during processes that involve heat gain? (eg melting boiling evaporation, not gaining heat itself)

Answer 22

type of movement changes but remains at the same speed as k.e is constant

(eg!! solid to liquid: movement changes from vibrating about their fixed positions to slipping and sliding but at the same speeds)

Question 23

what happens to arrangement of particles during processes that involve heat gain?

Answer 23

particles move further apart & become more irregularly arranged

Question 24

what happens to strength of attraction between particles during processes that involve heat gain?

Answer 24

heat energy absorbed is used to overcome the foa btw particles

Question 25

what happens to kinetic energy during processes that involve heat loss? (eg freezing, condensation, not losing heat itself)

Answer 25

temp remains constant until the state change is complete

Question 26

what happens to movement of particles during processes that involve heat loss?

Answer 26

type of movement changes but remains at the same speed as k.e is constant (eg!! liquid to solid: movement changes from slipping and sliding over each other to vibrating about their fixed positions but at the same speeds)

Question 27

what happens to arrangement of particles during processes that involve heat loss?

Answer 27

particles move closer together & become more regularly arranged

Question 28

what happens to strength of attraction between particles during processes that involve heat loss?

Answer 28

energy is released to the surroundings as the foa btw particles get stronger

Question 29

the _ the Mr (mass number), the _ the rate of diffusion

Answer 29

lower, faster / higher, slower

Question 30

Mr of chlorine

Answer 30

35.5 x 2 = 71

Question 31

Mr of Fluorine

Answer 31

19 x 2 = 38

Question 32

Mr of Bromine

Answer 32

80 x 2 = 160

Question 33

Mr of Aluminum

Answer 33

27

Question 34

the _ the temp, the _ the rate of diffusion

Answer 34

higher, faster / lower, slower expl: particles gain more energy as temp increases, they can move faster → increased rate of diffusion

Question 35

t/f: water molecules move at the same speed at solid, liquid and gaseous states

Answer 35

f

Question 36

def diffusion

Answer 36

net movement of substance from a higher conc to a lower conc

Question 37

what happens to the temp of water in a pot that is already boiling when the temp is turned even higher

Answer 37

temp remains the same

Question 38

why do pollen grains make random motions when suspended in water

Answer 38

they are knocked around by water particles slipping and sliding over one another