Question

Water can undergo a change of state when its energy changes at specific temperatures. Solid water, or ice, changes into liquid water when its energy increases at its melting point. a. Describe this process. b. Explain how the energy changes with each state.

Answer 1

Water changes from solid to liquid state when its energy increases at its melting point, and from liquid to solid state when energy is removed at its freezing point.

Step-by-step explanation:

Water undergoes a change of state when its energy changes at specific temperatures. At its melting point, solid water or ice changes into liquid water when its energy increases. This process is called melting. The temperature at which melting occurs is called the melting point, which is a fixed temperature for each substance. If we remove energy from liquid water, the water molecules slow down and the attractive forces between them cause the formation of ice. This temperature at which liquid water turns into ice is called the freezing point, and it is the same temperature as the melting point.

Answer 2

Answer: The solid turns into liquid during melting.

Step-by-step explanation:

a. The process of a solid turning into liquid is called melting. The solid ice turns into a liquid during the melting process. The solid molecules gain energy and flow as a liquid.

b. The energy of the molecules increases in the liquid state. When the ice turns into a liquid the energy of the molecules increases. The application of heat or excess temperature increases the energy of the molecules.