(1) A memborine admits a pure water flux of 120 litter /m2.h at a paressure differential of 110bar. The polarization modulus is estimated to be M=4.0, and salt rejection is R=0.9 If the osmotic pressurne of the Solution is 15bar, calculate the water and sait fluxe used to desalinate 4\% Salt solution at an applied pressune difference of 80bad. For simplicity, the Salf rejection rate may be assumed to be independent of pressune (8Mcn