He observed the model each day but they are not in order what would be the right order

Answer:
[tex]2\text{ , 3,1}[/tex]Explanation:
Here, we want to order the steps of the model
a) The first thing that would happen here is the evaporation of the liquid. This is a result of elevated temperature. The elevation of temperature will cause the liquid to evaporate
b) Since the elevated temperature cannot be maintained, what we have next would be a condensation. This leads to the water presence on the walls of the jar
c) The next thing here is precipitation. The condensed molecules will run down the wall of the jar