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Why does the solubility of dcm in water decrease, when temperature increases?
Accepted Answer
Dichloromethane (DCM) is a non-polar solvent, while water is a polar solvent. The solubility of non-polar substances in polar solvents generally decreases as the temperature increases. This is because the energy required to overcome the intermolecular forces between water molecules (hydrogen bonding) is greater than the energy required to overcome the intermolecular forces between DCM molecules (Van der Waals forces). As the temperature increases, the water molecules have more energy and are less likely to form hydrogen bonds with the DCM molecules, leading to a decrease in solubility.
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