1. Using the equation for the rate of diffusion of a vapour through a stationary gas layer (1) and the equation that describes evaporation: n(t)=MdtdL(t) derive the linear function L=2KLt2L0 which describes the decrease of the level of acetone due to diffusion over time. Note: K is a variable introduced while equating the rate of diffusion with the evaporation rate and includes all the variables that are not dependent on time. For the integration of the equation use L0 as the lover integration limit and L0+L as the upper integration limit for integrating the length of diffision path and t=0 and t as the lower and upper limits for the integration of time respectively. Given conditions: L(t=0)=L0 and L(t)=L0+L 2. a. Plot the change in acetone level against the difference quotient t/AL in a graph. b. Determine the K factor. c. Calculate the diffusion coefficient D