Fill in the blanks!
the freezing point of a solution will and the vapor pressure will with molality of a nonvolatile solute.
a.) increase, decrease, decreasing
b.) increase, increase, decreasing
c.) decrease, increase, decreasing
d.) decrease, increase, increase

B.Increase,increase,decreasing

Explanation:

Freezing point:It is defined as the temperature at which the substance freeze.

Vapor pressure: it is defined as the pressure exert by the vapor on the liquid at given temperature and pressure.

Molality:It is defined as the number of moles of solute dissolve in given mass of solvent.

When we decrease the freezing point of solution then depression in freezing point increase and then molality of nonvolatile solute is  also increase.

When we increase the molality of non volatile solute then elevation in boiling point also increase  and then vapour pressure decrease .

If we decrease molality then elevation in boiling point  and depression in freezing point also decrease.

If elevation in boiling point decrease then vapour pressure increase.

When depression in freezing point decrease then freezing point of solution is increase.

B.Increase,increase,decreasing

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.