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MHT CET Medical202622 April 2026Morning ShiftChemistryChemical EquilibriumActual

For which of the following solids does solubility decrease with an increase in temperature?

Options

  1. APotassium nitrate
  2. BSodium nitrate
  3. CSodium sulphate.
  4. DPotassium chloride

Correct answer

C. Sodium sulphate.

Step-by-step solution

The effect of temperature on the solubility of a solid depends on whether the dissolution process is endothermic or exothermic. According to Le Chatelier's principle, if the dissolution is endothermic, solubility increases with temperature. If the dissolution is exothermic, solubility decreases with temperature. The dissolution of potassium nitrate, sodium nitrate, and potassium chloride in water are endothermic processes, so their solubilities increase as temperature rises. For sodium sulphate, above its transitio

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