Final answer:
The liquid levels in both arms of the U-shaped tube are at the same height. The conditions in the U-shaped tube represent equilibrium. The liquid in one arm of the U-shaped tube is under higher pressure than the other.
Step-by-step explanation:
The correct statements about the conditions shown in the U-shaped tube are as follows:
A. The liquid levels in both arms of the U-shaped tube are at the same height. This is true because the pressure at points at the same height on the two sides of a U-tube must be the same as long as the two points are in the same liquid.
B. The conditions in the U-shaped tube represent equilibrium. This is true because a net flow of water through the membrane occurs until the levels in the arms eventually stop changing, indicating that equilibrium has been reached.
D. The liquid in one arm of the U-shaped tube is under higher pressure than the other. This is true because the pressure at each point in the U-tube is due to atmospheric pressure plus the weight of the liquid above it. The liquid in one arm will have a higher pressure if it has a greater column height compared to the other arm.