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Solute Definition

What is the Solute Definition?

A material that dissolves in the solvent is referred to as a Solute.

Solute Definition

Fluid Solutions

The presence of solvent is much greater than the amount of Solute. One common example of solutes and solvents is Salt and water. The material which gets dissolved in the solvent (namely water) is called Solute (namely Salt).

Features of the Solute

  • The particle of the solution is not visible to the naked eye.
  • The solution does not permit the beam of light to be scattered.
  • It is made up of only one phase.
  • The Solute from the solution cannot be filtered by the filtration method ( or mechanically)
  • It is a homogenous mixture containing two or more particles.

Types of Solutes

The term homogenous means the mixture's components dissolve in a single phase. A heterogeneous phase means the mixture's components dissolve in a different phase.

Solute Definition

The features of the mixtures include density, temperature and concentration that can be equally distributed through the volume but only in the absence of diffusion phenomena or after their completion. The types of Solute are:

  1. Solid
  2. Liquid
  3. Gaseous


A solid solute is dissolved into a solid or liquid solvent. For example

Solid in solid

Steel is the solution of carbon atoms in a crystalline matrix of iron atoms.

Solid in Liquid:

Salt (Sodium Chloride) NaCl in water

Sucrose (Sugar) in Water


If the Liquid is Solute, it can be dissolved in liquids and solids. Some of the examples are:

Liquid in Solid: An Amalagam is developed from Mercury in Gold. Moist solids develop when water is in solids, sugar or Salt. Hexane in Paraffin wax.

The Liquid in Liquid: Alcoholic beverages are an example of solutions of ethanol in water.


The gaseous Solute can be dissolved in solid, gas and liquid solvents. We know that Nitrogen (78%) is a major constituent in the air. Here the solvent is Nitrogen, and the solution is air.

Gas in Liquid: Examples of Gas in Liquid include Carbon Dioxide and Oxygen in water.

Gas in Liquid: Hydrogen easily mixes in the metal (palladium). The Solute here is Palladium.

Examples of Solute

Corresponding Solute in the Solution Solutions
Many gases in Nitrogen Air in Atmosphere
Mercury in Silver Amalgam
Tin Dissolved in copper Bronze
Salt dissolved in water. Saltwater
CO2 in water Carbonated Beverages
Ethylene glycol in water Antifreeze in radiator
Sugar dissolved in water Sugar water
Zinc in Copper Brass Alloy

Unsaturated and Saturated Solution

Solute Definition

When a mixture dissolves solutes as much as possible at a definite temperature, it is referred to as a saturated solution. In other words, it can be defined as when no more solute can dissolve in the solvent at a particular temperature, called Saturated Solution. When the amount of Solute is not equal at the saturation level but less than that, it is referred to as Unsaturated Solution.

Difference Between Solvent and Solute

Specific Solvent Solute
Meaning It acts as a dissolving medium for the particle It is a soluble material
Physical State Dominant is Liquid, but it can be solid and gaseous also. It can be solid, gas or Liquid.
Dependability The solubility of a substance may be subjected to the characteristics of solvent. The solubility of a substance relies on the characteristics of the Solute.
Boiling Point The solvent possesses a lower boiling point compared to solutes The Solute possesses a higher boiling point compared to that of the solution.
Solubility The solubility is determined by the solvent's characteristics, for example, polarity. The solubility of a solute is determined by its characteristics, such as molecule size and surface area.
Heat Transfer Heat is moved to the Solute in a solution. Heat is transferred from the Liquid to the solution.

Frequently Asked Questions

Question: How solubility of a material change is affected by temperature? Explain with a suitable example.

Answer: The highest amount of Solute that can be dissolved into a known solvent at a particular temperature is solubility.

Factors that influence solubility are Pressure and Temperature.


  • It influences only the solubility of gases.
  • According to Henry's law of gas, a liquid's dissolved gas quantity is proportional to its partial pressure above the Liquid.


  • It influences the solubility of both gases and solids
  • It applies to all forms of gases; when the temperature increases, the solubility decreases.
  • Temperature can shoot up the quantity of Solute that can be dissolved into a solvent.

The solubility of a particular solute to dissolve in a particular solvent relies on the temperature.

Similarly, the solubility of gases decreases with an escalation in temperature.

Question: What do you consider water: A solute or solvent?

Answer: The solvent is the item that determines the solutions' physical state (Liquid, solid and Gas). The Solute comes out as a product that the solvent dissolves. For example, in a solution between Sodium Chloride (NaCl) and water, the water act as a solvent and Salt as a solute. Water is popularly called " the universal solvent" because it can absorb any material compared to any liquid.

Question: Define the Solution. Illustrate with examples.

Answer: A solution is a mixture of two or more items that are homogenous. A solution is composed of two components, namely: a solvent and a solute. For example, Sodium Chloride is a solute in a salt solution, and water acts as a solvent.

Next TopicSolvent Definition

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