When a substance dissolves, it undergoes a physical change, not a chemical change. This is because the molecules of the solute are dispersed in the solvent but do not undergo any chemical reactions. The process of dissolving is a result of the attraction between the solute and solvent molecules.
Dissolving a substance does not involve a phase change.
The solute becomes less ordered
The heat energy absorbed or released when a specific amount of solute dissolves in a solvent is called the heat of solution or enthalpy of solution. It represents the overall energy change associated with the dissolution process.
The change in energy during a dissolution process is called heat of solution. It represents the overall amount of energy absorbed or released when a solute dissolves in a solvent.
When iodine dissolves in alcohol, it is a physical change because no new substances are formed. The iodine molecules are simply dispersed in the alcohol solution, but the chemical properties of iodine and alcohol remain the same.
When a substance dissolves, it undergoes a physical change, not a chemical change. This is because the molecules of the solute are dispersed in the solvent but do not undergo any chemical reactions. The process of dissolving is a result of the attraction between the solute and solvent molecules.
it is a physical change not a chemical change. milo dissolves into hot milk because it is a super saturated solvent.
Adding a solute to a solvent can change its properties by altering the boiling point, melting point, viscosity, and osmotic pressure. The presence of solute particles disrupts the solvent's ability to vaporize or freeze, leading to changes in these properties. The more solute added, the greater the impact on the solvent's properties.
Dissolving a substance does not involve a phase change.
The solute becomes less ordered
To calculate the enthalpy change of a solution (H solution), you can use the formula: H solution H solute H solvent H mixing Where: H solute is the enthalpy change when the solute dissolves in the solvent H solvent is the enthalpy change when the solvent changes state (if applicable) H mixing is the enthalpy change when the solute and solvent mix By adding these three components together, you can determine the overall enthalpy change of the solution.
The heat energy absorbed or released when a specific amount of solute dissolves in a solvent is called the heat of solution or enthalpy of solution. It represents the overall energy change associated with the dissolution process.
No, Because Technically its still the same substance.
Solubility is a physical property because it is related to a physical, not a chemical, change. When something dissolves, it does not change chemically. It is still the same compound/molecule, etc. when it was not dissolved in the solvent.
When sugar dissolves in water, the change in entropy is generally positive. This is because the sugar molecules become more dispersed in the solvent, increasing the disorder or randomness of the system.
Not necessarily just changing the surface area causes the rate to change. Changing the ratio of surface area volume changes the rate at which a solute dissolves in a solvent. If the surface area is larger and the volume of a solute is smaller or the same, then the rate at which the solute dissolves in a solvent increases. If the surface area is smaller and the volume of the solute is larger or the same, then the rate at which the solute dissolves in a solvent decreases.