Question

An open beaker containing a pure solvent and a
second beaker containing a solution in the same
solvent with a non-volatile solute are sealed in a
container. Over the period of time
(a) the volume of solution increases and the volume of solvent decreases,
(b) the volume of both solution and solvent increases,
(c) the volume of solution decreases while volume of solvent increases,
(d) the volume of both solution and solvent decreases,
​

Answer 1

Option B is the answer

Explanation

Various kinds of solutes (e.g. NaCl, ethylene glycol) added to H2O result in a decrease in the freezing temperature, as well as an increase in the boiling temperature, of H2O.

Solutes added to H2O are a useful mechanism with which to prevent water-cooled machines from freezing in winter and boiling over in summer

Salt added to the roads can prevent the freezing of water in winter

These effects upon the physical properties of water are termed "colligative properties" and are primarily dependent upon the amount of solute added, and are relatively independent of the type of solute

Colligative properties depend upon the collective effect of the number of solute particles in a solution

Here's a weird experiment that demonstrates the colligative effects of solutes upon a solution

We have two beakers. One contains H2O, the other contains a salt solution (NaCl) in H2O.

Both beakers are placed into a sealed chamber:

If we leave it for a couple of days and then come back and take a look, this is what it might look like:

Note that it appears that all the water has moved over into the beaker with the NaCl

Answer 2

Answer:

Option:B

Is the answer