Why can substances with endothermic heat of solution dissolve?

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In summary, Endothermic ΔH refers to the change in enthalpy of a reaction or process that absorbs heat from its surroundings, and is measured using a calorimeter. It is related to dissolving because dissolving often requires heat to be absorbed, and can occur simultaneously with dissolving. Endothermic ΔH and dissolving also affect the solubility of a substance, as an increase in temperature can lead to an increase in solubility for many substances.
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Why is a substance with an endothermic heat of solution able to dissolve?

Is it due to the activation energies being reached (forming activated complexes)? If so then I'm guessing this has to do with temperature.
 
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Solution gets cold, but the entropy grows. After all it is ΔG that is a driving force, and ΔG = ΔH - TΔS.
 

1. What is Endothermic ΔH?

Endothermic ΔH refers to the change in enthalpy of a reaction or process that absorbs heat from its surroundings. This results in a decrease in temperature and an overall increase in the energy of the system.

2. How is Endothermic ΔH measured?

Endothermic ΔH is measured using a calorimeter, which is a device that can accurately measure the amount of heat absorbed or released during a chemical reaction. The change in temperature of the reaction is used to calculate the ΔH value.

3. What is the relationship between Endothermic ΔH and dissolving?

Endothermic ΔH and dissolving are related because dissolving is a process that often requires heat to be absorbed from the surroundings. This leads to a decrease in temperature and a negative ΔH value, indicating an endothermic process.

4. Can Endothermic ΔH and dissolving occur at the same time?

Yes, endothermic ΔH and dissolving can occur simultaneously. When a substance is dissolving, heat is often absorbed from the surroundings, leading to a decrease in temperature and an endothermic reaction. This is commonly observed when salt is dissolved in water.

5. How does Endothermic ΔH and dissolving relate to the solubility of a substance?

The endothermic ΔH and dissolving are directly related to the solubility of a substance. The solubility of a substance is affected by temperature, and an endothermic reaction indicates that heat is absorbed during the dissolving process. Therefore, an increase in temperature can lead to an increase in solubility for many substances.

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