question_answer

                                                        (i) Water has higher boiling point than alcohol. Give reason. (ii) Find the temperature in Kelvin, at which water can be changed into solid state and vapours.

Answer:

                                                                           (i) Water has higher boiling point that alcohol due to greater intermolecular forces of attraction in between water molecules.                     (ii) At 273 K, water can be changed into solid state (ice) and at 373 K, it can be changed into vapours.