Solubility of which among the following substances in water increases slightly with rise in temperature?

Potassium bromide

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Potassium chloride

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Potassium nitrate

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Sodium nitrate

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Solution

The correct option is B Potassium chloride
$K C l$ has large hydration energy than its lattice energy, so it evolves energy on dissolving in water. Consequently, with rise in temperature, its solubility increases.

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Similar questions

Normally, solubility of a crystalline solid increase with temperature. Does it increase uniformly in all cases ? Name a substance whose solubility :

(a) increase rapidly withe temperature.

(b) increase gradually with temperature.

(d) initially increases then decreases with rise in temperature.

32^{\circ}

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