Which statement correctly describes an endothermic chemical reaction?

An endothermic chemical reactions products tend to have a higher potential energy than the reactants. Thus making the /\ H positive, not negative. 

The dispersed phase is liquid and dispersed medium in milk is liquid

Ithink this is what you meant. the temperature at which a liquid begins to boil is called the boiling point. the boiling point of water is 212°f or 100°c.  and at that point will start to turn into steam (gas)