Which compounds solubility decreases most rapidly as the temperature changes from 10c to 70c
Which answer choice will it be?Solubility og a solid:-
Solubility of a solid increases on increasing temperature .
In the question NH4Cl and KCl are solids whose solubility will increase on increasing temperature.
Solubility of gases:-
The solubility of a gas decreases as the temperature increases because the kinetic energy of the gaseous solute increases.
Here , HCl and SO2 are gases
Solubility of gases also depends on the polarity or the force of attraction between them.
SO2 is more polar than HCl so force of attraction between the molecules of SO2 is more as compared to HCl .
As temperature of HCl increases, the individual particles will have so much energy that the intermolecular forces are overcome so all HCl molecules will overcome the force of attraction between them even on little bit rise in temperature as compared to SO2.
Hence, solubility of HCl will decrease more rapidly than Solubility of SO2 .
Hence option C or 3 is correct.