Which of the following are correct statements?

Spontaneous adsorption of gases on solid surface is an exothermic process as entropy decreases during adsorption 

Formation of micelles takes place when temperature is above Kraft Temperature (T_K) and concentration is above critical micelle concentration (CMC)

A colloid of $\mathrm{Fe}(\mathrm{OH}{)}_3$  is prepared by adding a little excess (required to completely precipitate ${\mathrm{Fe}}^{3+}$ ions as $\mathrm{Fe}(\mathrm{OH}{)}_3\text{ of }\mathrm{NaOH}\text{ in }{\mathrm{FeCl}}_3$ solutions 

According to Hardy-Schulze rules the coagulation (flocculating) value of Fe³⁺ ion will be more than ${\mathrm{Ba}}^{2+}\text{ or }{\mathrm{Na}}^{+}$