Phase transition or change of state refers to the change of a substance's phase from one state to another. In this section, we will talk about the different phase changes, the associated terminology, and the key ideas related to all these.
Types of Phase Transitions
There are different types of phase transitions. From the MCAT point of view, you should have a good grasp of phase transitions. Let's look at the basic terminology.
The conversion of a solid to a liquid is called melting.
The temperature at which a substance changes from solid state to its liquid state is called its melting point.
|The conversion of a liquid to a solid is called freezing.|
|The temperature at which a substance changes from liquid state to its solid state is called its freezing point.|
|The conversion of a liquid to a gas is called vaporization.|
|The temperature at which a substance changes from liquid state to its gas state is called its boiling point.|
|The conversion of a gas to a liquid is called condensation.|
|The direct conversion of a solid to a gas is called sublimation.|