MHT CET · Chemistry · Practical Chemistry
Which among following salts shows decrease in solubility with increase in temperature?
- A \(\mathrm{Na}_2 \mathrm{SO}_4\)
- B \(\mathrm{KNO}_3\)
- C \(\mathrm{NaNO}_3\)
- D \(\mathrm{KBr}\)
Answer & Solution
Correct Answer
(A) \(\mathrm{Na}_2 \mathrm{SO}_4\)
Step-by-step Solution
Detailed explanation
Dissolution of \(\mathrm{Na}_2 \mathrm{SO}_4\) in water is an exothermic process. When a substance dissolves in water by an exothermic process, its solubility decreases with an increase in temperature. Hence, solubility of \(\mathrm{Na}_2 \mathrm{SO}_4\) in water decreases with increase in temperature.
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