melting and from a solid to gas ,as in dry ice, it is sublimating
The process in which a solid changes to a liquid is called melting.
When thermal energy is added or removed, the state of matter changes to another eg. solid becomes liquid and liquid becomes gas.
Two phase changes that occur when matter loses heat energy are: Solid to liquid: When a substance loses heat energy, it can transition from a solid phase to a liquid phase. This process is called melting. Liquid to gas: Another phase change that can occur when matter loses heat energy is the transition from a liquid phase to a gas phase. This process is known as vaporization or boiling.
When a substance changes state from a solid to a liquid, it undergoes melting where it gains enough energy to break the bonds holding its particles together. When it changes from a liquid to a gas, it undergoes vaporization where it gains enough energy to overcome the forces of attraction between its particles.
gas to a liquid
The state of matter changes from liquid to gas through a process called vaporization. This occurs when the substance absorbs enough heat energy to break free from the forces holding its particles together in a liquid state and allows them to move freely.
You are adding heat/energy. It is melting.
You are adding heat/energy. It is melting.
It's called condensation when a gas changes to a liquid
When a substance changes from a gas to a liquid state, it undergoes a process called condensation. This occurs when gas molecules lose energy and come together to form a liquid due to a decrease in temperature or an increase in pressure. Examples include water vapor condensing into liquid water when it cools down.
When water changes from a gas to a liquid it is still called water, but I don't think that was your question. The process of changing water, or any substance for that matter, from it gaseous state to it liquid state is called condensation,
This change in the state of matter (liquid to solid) is called freezing, not melting; it is a physical change, the chemical nature of the molecules is not changed.