The azeotropic mixture of water and HCl is a mixture in which the two components boil at a constant temperature, and their composition in the vapor phase is the same as in the liquid phase. In the case of water and HCl, this azeotrope forms at a temperature of 381.5 K.
When you distill an azeotropic mixture, it's typically not possible to separate the components into pure states using a simple distillation process. The reason for this is that the composition of the vapor and liquid phases remains constant at the azeotropic point. In the case of water and HCl, as you distill the mixture, the vapor you collect will have the same composition as the liquid you started with, which is the azeotropic composition.
Therefore, You cannot obtain either pure water or pure HCl by distilling the azeotropic mixture because the composition remains constant at 381.5 K.
So, the correct option is (C): Neither water nor HCl.
According to the generally accepted definition of the ideal solution there are equal interaction forces acting between molecules belonging to the same or different species. (This is equivalent to the statement that the activity of the components equals the concentration.) Strictly speaking, this concept is valid in ecological systems (isotopic mixtures of an element, hydrocarbons mixtures, etc.). It is still usual to talk about ideal solutions as limiting cases in reality since very dilute solutions behave ideally with respect to the solvent. This law is further supported by the fact that Raoult’s law empirically found for describing the behaviour of the solvent in dilute solutions can be deduced thermodynamically via the assumption of ideal behaviour of the solvent.
Answer the following questions:
(a) Give one example of miscible liquid pair which shows negative deviation from Raoult’s law. What is the reason for such deviation?
(b) (i) State Raoult’s law for a solution containing volatile components.
OR
(ii) Raoult’s law is a special case of Henry’s law. Comment.
(c) Write two characteristics of an ideal solution.
A solution is a homogeneous mixture of two or more components in which the particle size is smaller than 1 nm.
For example, salt and sugar is a good illustration of a solution. A solution can be categorized into several components.
The solutions can be classified into three types:
On the basis of the amount of solute dissolved in a solvent, solutions are divided into the following types: