P6.3 - Changes of State Flashcards
When ice melts what temperature range does the ice stay in until it has all melted?
0 degrees c to 0 degrees C
What is the temperature at which a solid changes to a liquid called?
The melting point
What is the temperature at which a liquid turns to a gas called?
The boiling point
For any ___ substance undergoing a change of state, its ___ stays the ___ while the change is taking place
Pure, temperature, same
What happens to the temperature of a substance while it is undergoing a change of state?
It stays the same until the whole substance has changed state
What is latent heat?
The energy transferred to a substance when it changes state
Why is fusion sometimes used to describe melting?
Because different solids can be joined or fused together when they melt
Why do liquids boil (bubble) at their boiling point?
Because bubbles of vapour form inside the liquid and rise to the surface to release the gas
