What do you call the process of changing liquid to solid?

What do you call the process of changing liquid to solid?

Freezing, or solidification, is a phase transition in which a liquid turns into a solid when its temperature is lowered to or below its freezing point.

What do you call the process of changing solid into liquid?

The process of a solid becoming a liquid is called melting (an older term that you may see sometimes is fusion). For any pure substance, the temperature at which melting occurs — known as the melting point — is a characteristic of that substance. It requires energy for a solid to melt into a liquid.

What process changes a gas to a liquid?

The process in which a gas changes to a liquid is called condensation. Other examples of condensation are shown in Figure below. A gas condenses when it is cooled below its boiling point.

How is the conversion of a gas to a liquid affected?

The process of a liquid becoming a gas is called boiling (or vapourization), while the process of a gas becoming a liquid is called condensation. However, unlike the solid/liquid conversion process, the liquid/gas conversion process is noticeably affected by the surrounding pressure on the liquid because gases are strongly affected by pressure.

What is the enthalpy of vapourization of a gas?

Unless otherwise specified, it is assumed that a boiling point is for 1 atm of pressure. Like the solid/liquid phase change, the liquid/gas phase change involves energy. The amount of energy required to convert a liquid to a gas is called the enthalpy of vapourization (or heat of vapourization), represented as Δ Hvap.

What happens when a solid melts into a liquid?

It requires energy for a solid to melt into a liquid. Every pure substance has a certain amount of energy it needs to change from a solid to a liquid. This amount is called the enthalpy of fusion (or heat of fusion) of the substance, represented as Δ Hfus.

What happens when a substance becomes a liquid?

At low temperatures, most substances are solid; as the temperature increases, they become liquid; at higher temperatures still, they become gaseous. The process of a solid becoming a liquid is called melting. (an older term that you may see sometimes is fusion ). The opposite process, a liquid becoming a solid, is called solidification.