Question

When two solvents are separated by a semi-permeable membrane, water flows from low solute concentrations to high solute concentrations. What would happen if external pressure is applied to the solution with higher solute concentration

Answer 1

The pressure would force the water across the membrane to the side with lower solute concentration, if I understand your question correctly. Hope this helps! :)

Answer 2

water will stop flowing across the semi-permeable membrane