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Why does the solubilities of anhydrous salts decrease with increase in temperature?

(a) $\Delta H _{solution}$ = -ve

(b) $\Delta H _{solution}$ = +ve

(c) $\Delta H _{solution}$ = 0

(d) None of These

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  • Anhydrous salts which for hydrates (MgSO$_{4}$ , CuSO$_{4}$ etc..), almost all alkali metal hydroxides and alkaline earth emtal hydroxides dissolve by the evolution of heat i.e. $\Delta H_{solution}$ = -ve .
answered Nov 13, 2013 by mosymeow_1
edited Nov 13, 2013 by mosymeow_1

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