What is the process called when a substance changes state from solid to liquid?

What is the name for the process in which a substance changes from a gas to a liquid?

What is the phase change process in which a substance changes directly from a solid to a gas without passing through the liquid phase?

What is the term used to describe the process in which a substance changes from a liquid to a gas?

What is the term for the process in which a substance changes from a gas to a solid without becoming a liquid?

What is the term for the process in which a substance changes from a gas to a liquid?

In a heating curve graph, what phase transition is represented by a flat horizontal line?

What does the slope of the heating curve graph represent?

What happens to the kinetic energy of particles during a phase transition represented by a flat horizontal line in a heating curve graph?

What is the purpose of a heating curve graph?

What is the significance of the flat regions in a heating curve graph?