Changes of State Answers
As atoms gain energy, they move faster and slide past one another more easily. Atoms at the surface of the substance overcome attractions to nearby atoms and break free of the surface.
Brian made this table to organize his notes on changes of state.Which change of state has the wrong energy change listed?
What happens if atoms lose energy during a change of state?
A cylinder at left with balls evenly spaced throughout the cylinder has an arrow leading to a cylinder at right cylinder with balls stacked near its bottom.
A cylinder at left with balls stacked near the bottom of the cylinder has an arrow leading to a cylinder at right cylinder with balls in a layer on the bottom of the cylinder.
The diagram shows changes of state between solid, liquid, and gas. The atoms of a substance lose energy during a change of state. Before the change, the atoms are close together but are able to slide past one another.
During which changes of state do atoms overcome the attractive forces between them?
A cylinder at left has balls stacked near its bottom with an arrow leading to a cylinder at right with balls evenly spaced throughout the cylinder.
During which changes of state does the motion of the atoms decrease?
During which change of state would the volume of a substance increase the most?
What happens during evaporation?
Which statement best describes the energy changes associated with evaporation and boiling?
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