If liquids A and B form an ideal solution, then
If liquids A and B form an ideal solution, then
- the enthalpy of mixing is zero
- the entropy of mixing is zero
- the free energy of mixing is zero
the free energy as well as the entropy of mixing are each zero
The Correct Option is A
Solution and Explanation
If liquids A and B form ideal solutions, then the enthalpy of mixing is zero.
An ideal solution is the solution which obeys Raoult's law at all concentrations. Such solutions are formed by mixing components having same molecular size, structure and similar intermolecular forces. For an ideal solution,
\(\Delta H_{mix}\)= 0
\(\Delta V_{mix}\) = 0
where, \(\Delta H\) = Change in Enthalpy and \(\Delta V\) = Change in Volume
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Concepts Used:
Solutions
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.
Types of Solutions:
The solutions can be classified into three types:
- Solid Solutions - In these solutions, the solvent is in a Solid-state.
- Liquid Solutions- In these solutions, the solvent is in a Liquid state.
- Gaseous Solutions - In these solutions, the solvent is in a Gaseous state.
On the basis of the amount of solute dissolved in a solvent, solutions are divided into the following types:
- Unsaturated Solution- A solution in which more solute can be dissolved without raising the temperature of the solution is known as an unsaturated solution.
- Saturated Solution- A solution in which no solute can be dissolved after reaching a certain amount of temperature is known as an unsaturated saturated solution.
- Supersaturated Solution- A solution that contains more solute than the maximum amount at a certain temperature is known as a supersaturated solution.