MHT CET · Chemistry · Chemical Bonding and Molecular Structure
In which of the following salts, the solubility increases appreciably with increase in temperature?
- A KBr
- B NaBr
- C NaCl
- D KCl
Answer & Solution
Correct Answer
(A) KBr
Step-by-step Solution
Detailed explanation
The solubility of solid solute depends upon temperature.
Variation of solubilities of some ionic solids with temperature
- Generally, rise in temperature increase the solubility. This is due to expansion of holes or empty spaces in the liquid solvent. Generally, \(10^{\circ} \mathrm{C}\) rise in temperature, increase the solubility of solids two-fold.
- Dissolution process may be endothermic or exothermic.
- The solubility of the substances like \(\mathrm{NaBr}, \mathrm{NaCl}, \mathrm{KCl}\), etc. changes slightly with the increase in temperature.
- The solubility of the salts like \(\mathrm{NaNO}_3, \mathrm{KNO}_3, \mathrm{KBr}\), etc. increases appreciable with the increase in temperature.
- The solubility of \(\mathrm{Na}_2 \mathrm{SO}_4\) first increase and after \(30^{\circ} \mathrm{C}\) decreases with the increase in temperature.
Variation of solubilities of some ionic solids with temperature
- Generally, rise in temperature increase the solubility. This is due to expansion of holes or empty spaces in the liquid solvent. Generally, \(10^{\circ} \mathrm{C}\) rise in temperature, increase the solubility of solids two-fold.
- Dissolution process may be endothermic or exothermic.
- The solubility of the substances like \(\mathrm{NaBr}, \mathrm{NaCl}, \mathrm{KCl}\), etc. changes slightly with the increase in temperature.
- The solubility of the salts like \(\mathrm{NaNO}_3, \mathrm{KNO}_3, \mathrm{KBr}\), etc. increases appreciable with the increase in temperature.
- The solubility of \(\mathrm{Na}_2 \mathrm{SO}_4\) first increase and after \(30^{\circ} \mathrm{C}\) decreases with the increase in temperature.
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