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(i) Explain the factors influencing the solubillity of the solutes. (ii) Why the carbonate drinks are stored in a pressurised container? |
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Answer» Solution :(i) Factors influencing solubility: Nature of solute and solvents readily dissolves in solute and solvent: Sodium chloride, an IONIC compound readily bent such as water but it does not dissolve in nonpolar solvent such as of the organic compounds dissolve in organic solvent and do not dissolve in Effect of temperature: Generally, the solubility of a solid solute in a liquid solvent increase in temperature. The dissolution of NaCl does not vary as the maximum solubility is achieved at normal temperature. The dissolution of ammonium nitrate is endothermic and the solubility increases with increase in temperature. The dissolution of ceric SULPHATE is exothermic and the solubility decreases with increase of temperature. In the case of gascos solute in liquid solvent the solubility decreases with increase in temperature. Effect of pressure: Generally the change in pressure does not have any significant effect in the solubility of solids and liquids as they are not compressible. However, the solubility of gases generally increases with increase of pressure. (ii) . The carbonated beverages CONTAIN `CO_2` dissolved in them. To dissolve the`CO_2`in these drinks, `CO_2` gas is bubbled through them under high pressure. • These containers are sealed to maintain the pressure. When we OPEN these containers at atmospheric pressure, the pressure of the `CO_2`drops to the atmospheric pressure level and hence bubbles of `CO_2` RAPIDLY escape from the solution and show effervescence. |
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