Exercise A sample of a mythical substance is cooled from a temperature of 250°C to 10°C in
two hours. The boiling point of the substance is 175°C and the melting point is
22°C
Using this information, draw a cooling curve for the sample.
On the curve clearly label the following items in the appropriate locations (use
arrows as needed
to indicate direction or exact location on the curve. Some terms
may be used more than once, as needed.):
Solid
Freezing Point
Liquid
Fusion
Gas
Solidification
changes
Condensation
KE changing
Boiling
KE not changing
Melting Point
Direction of endothermic
Direction of exothermic
changes