Two solutions A and B are separated by a membrane, which is permeable to water but not salts. Solution A is a 2% NaCl solution, while solution B is a 3% NaCl solution. Which of the following will occur?

Either salt or water will move across the membrane
Neither salt or water will move across the membrane
None of the above

points

explanation:

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.