Pure water droplets (curvature effect, Kelvin's equation) 0.8 - 0.6 A B 0.4 0.2 Water supersaturation (%) 0 -0.2 - Solution droplets (solute effect, Raoult 's law) -0.4 - -0.6 - 12 13 4 15 16 -0.8 increasing mass of soluble salt -1.0 0.01 0.1 1 Droplet radius (um) 10 Figure 7.2. Equilibrium super saturation (with respect to a plane surface of water) over droplets of pure water (dashed curve), and over droplets containing dissolved material, as a function of droplet radius. Curves labeled 1-7 represent increasingly greater amounts of dissolved material in the droplet; they are called Khler curves. Surface Engineering and Kinetics Question 1 What are the values of the saturation relative humidity and supersaturation just above a pure water droplet of radius 0.05 um at loc? Assume that the values of .and n are 0.074 Nm-1 and 34,3 x 10^28 m-3, respectively