changes of state and internal energy stores

Question 1

to change a substances state, you need a change in the energy in the _________ of the particles

Answer 1

internal energy stores

Question 2

how do you transfer energy to internal energy stores

Answer 2

by heating

Question 3

a substance’s energy in its internal energy store is the

Answer 3

total energy of all particles in that substance

Question 4

when you heat a substance, you transfer energy to the particles of the substance- so you will always ____ the energy in the internal energy store of the substance

Answer 4

increase

Question 5

how can the temperature of a substance be measured (2)

Answer 5

kelvin scale (K)
degrees celsius

Question 6

If a substance is changing its state, its temperature will

Answer 6

stay constant

Question 7

for water at standard atmospheric pressure, what is boiling and melting point at *C

Answer 7

b- 100
m- 0

Question 8

as substances cool, energy is transferred ____ from them so they ___ energy from their _____

Answer 8

away
lose
internal energy store

Question 9

condensation happens at the same temperature as

Answer 9

boiling

Question 10

the forces between particles become ____ as particles move closer together

Answer 10

stronger

Question 11

condensation is

Answer 11

gas to liquid

Question 12

solidification is

Answer 12

liquid to solid

Question 13

melting is

Answer 13

solid to liquid

Question 14

boiling is

Answer 14

liquid to gas