試題詳解

65. Water desalination is a method to solve the problem of drought resulting from climate change. What is the minimum pressure needed to purify the water from 0.05 M of NaCl(aq) by reverse osmosis at 27 °C? (R = 0.08206 L atm K^-1 mol^-1 )
(A) 1.23 atm
(B) 2.46 atm
(C) 3.71 atm
(D) 4.52 atm
(E) None of the above.