Question

which of the following phase changes is defined as particles vibrating around fixed points and then speeding up and beginning to flow past each other?○ deposition○ condensation○ sublimation○ evaporation○ melting○ freezingquestion 43 ptswhich of the following phase changes is in equilibrium with evaporation at a specific pressure and temperature?○ deposition○ melting○ sublimationfreezingcondensationevaporation

Explanation:

1. For the first question: In solids, particles vibrate around fixed points. When melting occurs, the particles gain energy, speed up, and start to flow past each other as the substance turns into a liquid.
2. For Question 4: Evaporation is the phase change from liquid to gas, while condensation is the phase change from gas to liquid. At a specific pressure and temperature, these two processes occur at the same rate, creating a state of equilibrium.

Answer:

1. melting
2. condensation