A solution of sucrose in water at 25C is to be concentrated by reverse osmosis. It is found that, with a differential applied pressure of 5000kPa, the rate of movement of the water molecules through the membrane is 25kgm2h1 for a 10% solution of sucrose. Estimate the flow rate through the membrane for a differential pressure of 10,000kPa with: a) 10% sucrose solution. b) 20% sucrose solution