4 A cooling curve is the opposite of a heating curve. It shows how the temperature of a substance
changes with time, as it is cooled from a gas to a
solid. Here is the cooling curve for one substance:
ORE
78
Temperatura
liquid
solid
Time
a What is the state of the substance at room
temperature (20°C)?
b Use the list of melting and boiling points on
page 9 to identify the substance.
e Sketch a cooling curve for pure water​