Calculate and plot the dependence of the electrical double layer interaction energy on the separation distance, D, between the particles. The required units are J (in dimensions of 10-19 J) for energy and nm for separation. The dielectric constant is = 80, and the permittivity of a vacuum is & = 8.854 x 10-2 C J- m. Use the following increments and range for separation distance: D = 0.3, 0.4, 0.5, ..., 9.9, 10, 11, 12,..., 20 nm Write down the equation used and show your working for D = 0.8 nm. The total inter-particle interaction energy, Vtotal, as described by the DLVO theory can be expressed as: Vtotal = Vedi + Vvaw Calculate and plot the dependence of Vtotal on the particle separation distance, D. The required units are J (in dimensions of 10-19 J) for energy and nm for separation. Show the total interaction energy, Vtotal, the electrical double layer interaction energy, Vedl, and the van der Waals interaction energy, Vvaw. Use the following increments and range for separation distance: D = 0.3, 0.4, 0.5, ..., 9.9, 10, 11, 12,..., 20 nm Show your working for D = 0.8 nm.