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.

During which changes of state does the motion of the atoms decrease?
A cylinder at left with balls evenly spaced throughout the cylinder with an arrow leading to a cylinder at right with balls stacked near the bottom of the cylinder.

Which statement best describes the energy changes associated with evaporation and boiling?
What happens if atoms lose energy during a change of state?
Which is the process by which a solid changes to a liquid?
Brian made this table to organize his notes on changes of state.Which change of state has the wrong energy change listed?

During which changes of state do atoms overcome the attractive forces between them?
What happens during evaporation?
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.

What happens during evaporation?
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.
During which changes of state does the motion of the atoms decrease?
During which changes of state do atoms overcome the attractive forces between them?
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.

Freida wants to model the way atoms move when a substance changes its state. To do this, Freida makes a pyramid of marshmallows. Then, she knocked down the pyramid causing the marshmallows to fall.
During which change of state would the volume of a substance increase the most?
Did you find these answers helpful?