Question

How is boiling point elevation applied to real life?

Answer 1

Hint: This is a phenomenon happens to increase the vapor pressure of solution, this happens when a layer of nonvolatile solute covers the upper portion of solution, thus to make it volatile or to increase the vapor pressure of that solution, elevation happens. Now application is a very important tip that usually our mothers used while cooking food.

Complete step-by-step answer:
Before going to the exact answer, let’s understand the phenomenon which takes place for the elevation of boiling. In chapter “solutions” you have read that there are some processes which directly depend upon the mixing of solute in solvent such as boiling, freezing, vapor pressure etc. Now if we talk about an example, when we add any non-volatile solute in the solvent it will not mix easily because the particles of the solute molecule makes a layer over the solution, so there are some changes which will happen.

As the upper layer of solution is made up of solute particles which are non-volatile in nature, the vapor pressure of the solution becomes lower than the pure solvent as less liquid form converts it into vapors. All the other processes depend on it and make their possible efforts to increase the vapor pressure of the solution. Thus, an elevation in boiling point is seen similarly to depression in freezing point also seen.

Now this elevation of boiling point has a very basic and important example, you have seen your mother putting salt in curry before pouring water, this simple process in vegetable preparation is an application of elevation in boiling point. In this when we put salt before water we are indirectly adding a non-volatile solute in the vessel which elevates or increases the timing for boiling of water and hence our curry gets enough time to be cooked.

Note: This addition of salt is a very daily basic task, there are many more examples in your daily life that are application of any of the processes either elevation of boiling point or depression in freezing point. These processes just increase the vapor pressure after adding a nonvolatile solute. An important example is pouring salt over ice in regions where ice falls happen.