Answer:
From your description, the permeable plastic bag with the sugar solution will increase in volume due to distilled water permeating into the plastic bag.
Explanation:
A PERMEABLE membrane is like having a hole in the bag…. it would let anything in or out, depending on external forces like hydrostatic pressure, concentration gradient, weight etc.
So, what I think will happen is that the sugar water will “leak” out of the bag into the water in the beaker, and distilled water will “leak” into the bag from the beaker. Overall, it will just reach an equilibrium, where the concentration of sugar in the solution inside the bag will be the same as the concentration of sugar in the beaker outside the bag.
For example, if you started with a permeable plastic bag containing 100 g of water and 5 g of sugar dissolved in it (weight = 105 g + weight of the bag)., after attaining equilibrium, if you take out the bag and weigh it, let’s say it will have 103 g of sugar solution + weight of the bag. So, you will have a bag that weighs slightly less than the weight you put into the beaker.
If you were to remove the bag and weigh it again, what you will find is that the weight is SLIGHTLY LOWER WEIGHT. If you were to measure the concentration of sugar in the solution inside the bag after you remove it, it will be LESS CONCENTRATED IN SUGAR.
