試題詳解

23. When a nonvolatile solute is added to a volatile solvent, the solution vapor pressure , the boiling point _, the freezing point _, and the osmotic pressure across a semipermeable membrane .
(A) decreases, increases, decreases, decreases
(B) increases, increases, decreases, increases
(C) increases, decreases, increases, decreases
(D) decreases, decreases, increases, decreases
(E) decreases, increases, decreases, increases