You have three drinks in front of you. You know how they were made, but are unsure which one has the highest concentration of juice crystals. The first drink has 10 g of juice crystals dissolved in
50 mL of water. The second drink has 15 g of juice crystals dissolved in 100 mL of water. The third drink has 6 g
of juice crystals dissolved in 25 mL of water.
What was the most concentrated drink? How did you determine this since all three drinks had different
amounts of solvent?

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.