YOU ARE LEARNING:
Heating and Cooling Curves
Heating and Cooling Curves
Heating and cooling curves show the temperature change of a substance over time, including changes of state.
True or false? As you heat an object up, the temperature will rise in a uniform manner?
Do you think a substance stays at each of the states for the same amount of time?
We can show the time a substance spends in each state on a heating curve or a cooling curve that shows the temperature change of a substance over time, including changes of state. The changes of state are shown by a horizontal line as there are no temperature changes during a change of state.
For both of the graphs you have been shown, did the temperature change during the changes of state?
True or false? A change of state always takes the same amount of time to occur.