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The solute becomes less ordered
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When a substance dissolves it undergoes a chemical change physical change molecular change?
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.
What phase change happens when something dissolves?
Dissolving a substance does not involve a phase change.
Are solubility and entropy related?
Yes, solubility and entropy are related. Generally, the process of dissolving a solute in a solvent increases the system's entropy, as the solute particles become more dispersed and occupy a greater number of microstates. This increase in entropy often drives the solubility of substances, especially when the enthalpy change of dissolution is favorable. In summary, greater disorder (entropy) generally favors solubility.
The heat energy absorbed or released when a specific amount of solute dissolves in a solvent is the?
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.
Whiych of the following describes the entropy change as a solution is made from a liquid and solid?
The entropy change when a solution is formed from a liquid and a solid generally increases. This is because the solid dissolves in the liquid, leading to a greater dispersion of molecules and an increase in disorder within the system. The solid's structured lattice breaks down, allowing for more possible arrangements of particles in the solution, which contributes to a higher entropy state.
When sugar dissolves es in water is the change in entropy positive or negative?
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.
What causes entropy to change when a solute dissolves in a solvent?
The solute becomes less ordered. (apex)
Entropy change for dissolving salt in water?
This question isn't very complete, but if you meant what is the solute or solvent, the water would be the solvent because there is more water than salt. In this case, the salt is the solute. If there...
In thermo-dynamics such a change causes an increase in entropy?
irriversible
Energy transfer that causes a change in temperatureWhat term refers to an energy transfer that causes a change in temperature?
Entropy
When a substance dissolves it undergoes a chemical change physical change molecular change?
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.
How does an increase in surface area help a solute dissolve more quickly?
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.
Why does Milo dissolve in hot milk?
it is a physical change not a chemical change. milo dissolves into hot milk because it is a super saturated solvent.
What phase change happens when something dissolves?
Dissolving a substance does not involve a phase change.
What is the enthalpy and entropy change when ammonium chloride is dissolved in water?
When ammonium chloride dissolves in water, it absorbs energy from the surroundings, resulting in a positive enthalpy change (endothermic process). The dissolution also leads to an increase in disorder or randomness, resulting in a positive entropy change.
Are solubility and entropy related?
Yes, solubility and entropy are related. Generally, the process of dissolving a solute in a solvent increases the system's entropy, as the solute particles become more dispersed and occupy a greater number of microstates. This increase in entropy often drives the solubility of substances, especially when the enthalpy change of dissolution is favorable. In summary, greater disorder (entropy) generally favors solubility.
How does the entropy change in the reaction 2c3h6g 9o2g 6co2g 6h2og?
The entropy change in a reaction can be calculated by comparing the entropy of the products to the entropy of the reactants. Without specific entropy values provided, it is difficult to determine the exact change. However, in general, the entropy change is positive in reactions where the products have higher entropy than the reactants, indicating an increase in disorder.
