What happens to the level of the salt solution in the distilling flask ? Explain why this happens

The salt get dissolved

In order to understand what happens to the level of the salt solution in the distilling flask, we need to understand the process of distillation. Distillation is a technique used to separate components in a liquid mixture based on the differences in their boiling points.

In a distillation setup, the salt solution is heated in a distilling flask. As the solution reaches its boiling point, it turns into vapor and rises up through the distillation apparatus. The vapor then enters a condenser, where it cools and condenses back into a liquid. This liquid, which is now separated from the non-volatile components of the mixture, is collected in a receiver.

During the distillation process, the level of the salt solution in the distilling flask gradually decreases. This happens because the volatile component of the mixture (in this case, the solvent), which has a lower boiling point, vaporizes and leaves the flask. However, the non-volatile component (in this case, the salt) remains in the flask as it does not vaporize at the temperature used in distillation.

The distillation process allows us to obtain the solvent (the volatile component) in its pure form, leaving behind the non-volatile components such as the salt. So, the level of the salt solution in the distilling flask decreases because the solvent is being selectively removed by vaporization, leaving behind the salt.