If dielectric constant (ε) of a solvent increases then solubility of ionic compounds.

When the dielectric constant (ε) of a solvent increases, the solubility of ionic compounds also increases.

Step 1: Understand the concept of dielectric constant and solubility The dielectric constant (ε) is a measure of a solvent's ability to separate and stabilize charged particles, such as ions. Solubility refers to the ability of a substance to dissolve in a solvent.

Step 2: Recognize the relationship between dielectric constant and solubility As the dielectric constant of a solvent increases, it means that the solvent has a higher ability to separate and stabilize charged particles. This increased ability allows the solvent to better interact with and dissolve ionic compounds.

Step 3: Explain the effect of dielectric constant on solubility The higher dielectric constant of a solvent creates a stronger electrostatic field, which can weaken the attractive forces between the ions in an ionic compound. This weakening of the attractive forces makes it easier for the solvent to break apart the ionic compound and dissolve it.

Step 4: Summarize the answer In summary, when the dielectric constant of a solvent increases, the solubility of ionic compounds also increases. This is because the higher dielectric constant enhances the solvent's ability to separate and stabilize the charged particles, allowing for better dissolution of the ionic compound.