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Excellent! Dilute means a lower concentration. As Solution A has a concentration of \(5 \, \mathrm{gm/L}\) and B has a concentration of \(15 \, \mathrm{gm/L}\), A is more dilute.
We discussed earlier that there is a limit to the amount of solute you can add to a solvent. If we reach that limit, any solute that is added doesn't dissolve. The solution is called saturated.

If the temperature of the solvent is increased, more solute can be added to it.