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Solubility of NH4Cl increases, while tha...

Solubility of `NH_4Cl` increases, while that of `CaCl_2` decreases upon heating why?

Text Solution

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The solubility equilibrium of `NH_4Cl` is : `NH_4Cl(s)+aq+ heat leftrightarrow NH_4Cl (aq)`
The dissociation of `NH_4Cl` is endothermic and such processes proceed at high temperature.
The solubility equilibiu of `CaCl_2` is
`CaCl_2(s)+aq leftrightarrow CaCl_2(aq)+ heat`.
The dissociation of `CaCl_2` is exothermic and such processes proceed at low temperature.
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AAKASH SERIES-CHEMICAL EQUILIBRIUM -QUESTIONS FOR DESCRIPTIVE ANSWERS
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