Question

which best describes the process that arrow 1 represents?
molecules are speeding up during boiling.
molecules are depositing as ice on a surface.
molecules are slowing down during condensing.
molecules are moving from stationary positions.

Explanation:

Condensation is the process where gas turns into liquid. During condensation, the molecules lose energy and slow down. In the given diagram, arrow 1 represents the transition from gas to liquid (condensation). When gas molecules condense (change to liquid), their kinetic energy decreases, and they move more slowly compared to when they were in the gaseous state.

Answer:

Molecules are slowing down during condensing.