1. In liquids, the particles are close together so their volumes are fixed, allowing them to
flow but keeping their volume constant. Gasses spread out, so their volumes arent fixed.
2. A - Condensation, B - Sublimation
3. A colorful cobalt(II) chloride crystal progressively loses its color when dropped into water.
The color is brightest close to the crystal at first, but as time passes, the particles
disperse to areas with less particles. The color disperses uniformly throughout the water
as a result of this procedure.
4.
5. Condensation
6. Diffusion and Evaporation
7. Liquid bromine: The molecules are still very close to one another and
distributed randomly, but they are not as densely packed as they are in a solid
state. They can slide or flow past each other because they have greater kinetic
energy.
Bromine gas: The molecules are dispersed and exhibit no particular
organization in this state. Because they possess a great deal of kinetic energy,
they move swiftly and freely in all directions.
8.The volume of bromine gas Increases with Temperature.
9.Gas
10. Solid chlorine: The molecules are grouped in a regular pattern and packed closely
together in this state. Because of their limited kinetic energy, which holds them firmly in place,
they can only vibrate back and forth in one location.
Chlorine gas: There is no particular order and the molecules are far more dispersed than in
liquids or solids. They travel freely and swiftly in every direction.
11.The pressure of chlorine gas increases with temperature.