Video: Effect of Temperature on the Solubility of Solids and Gases

Fill in the blanks: Typically, as the temperature of the solvent increases, solids become _ soluble, and gases become _ soluble.

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Video Transcript

Fill in the blanks. Typically, as the temperature of the solvent increases, solids become blank soluble, and gases become blank soluble.

In the question, we have the word solvent and the word soluble which should suggest to you that we’re dealing with solutions. A solution is a homogeneous mixture of two or more substances. All homogeneous means in this context is that the two components are evenly distributed throughout one another. One good example of a solution is sodium chloride dissolved in water. Water is our solvent. And our solutes are sodium ions and chloride ions. The higher the maximum concentration we can achieve, the higher the solubility.

The energy related to the temperature will be distributed between all the particles. Carbonated water is a different type of solution. It’s a gas dissolved in a liquid, whereas sodium chloride solution is a solid dissolved in a liquid. The higher temperature helps solvents to dissolve more solid giving them the energy they need to break up the solid material.

So solids become more soluble as the temperature of the solvent increases. On the other hand, a higher temperature helps gases to escape the liquid. So at higher temperatures, gases are less soluble. We now have the information we need to fill in the blanks. Typically as the temperature of the solvent increases, solids become more soluble and gases become less soluble.

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