試題詳解

39. When a non volatile 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, decreases, increases, decreases
(B)J increases, decreases, increases, decreases
(C) decreases, increases, decreases, increases
(D) increases, increases, decreases, increases
(E) decreases, increases, decreases, decreases