Can you please clarify me if paricle size distribution has some effect on Loss on Drying or not ??????
Evaporation occurs through the surface of the material, hence the rate of evaporation of volatiles, or loss on drying (LOD) depends on the total surface area of your sample. The smaller the particles, more surface area your sample has, and faster the rate of LOD will be. Hence, for two samples of the same mass, the one with smaller particles will evaporate the volatiles faster.