111. Solving a chemistry problem

Determine the drop radius, which corresponds to a 12% increase in saturated vapor pressure over water mist drops, if the surface tension is 0.072 N/m, the substance density is 970 kg/m3, and the temperature is 23°C. Determine the excess pressure of the liquid in the drop, the number of drops, the size of the phase separation surface and the excess energy of the system if the total mass of the drops is 40 g.