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This question is far more complicated than it looks. There are many factors that affect solubility, and one cannot make a prediction without considering a wide range of them.

A very basic rule for solids in liquids is that heat is required to break lattice energy of the solid, and so more heat means more ions on solution. However, this rule quickly breaks down.

A lot of solutes follow the expected increase in solubility with temperature. A lot of others though, do not. Some decrease with temp, some increase to a point then decrease, some follow non-linear increases (or decreases), and some do not change with temp, or change ever so slightly.

Gases in liquids are a little easier, they are already in discrete molecules, so no energy is required to break a non-existent lattice energy. However, gases possess weak intermolecular forces, so are only weakly held in solution. That is, as more heat is applied, gases are more easily able to escape and so solubility decreases with temperature.

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Brenden Bosco

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3y ago

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What is the relationship between temperature and solubility?

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How does increasing temperature affect the solubility of a gas solute?

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