Please help to solve with good illustration of diagrams and steps

Use the standard approach for problem solving (you will remember this from previous courses), consisting of three steps: (1) Identify, (2) Formulate, and (3) Solve. For this quiz, apply the first two steps to set the problem up for solution (identify and formulate). This quiz is open book and collaboration is encouraged. 1. Problem Statement Two tanks are connected by a tube, 5mm in diameter and 0.5m long. One tank contains nitrogen and one tank contains carbon dioxide. The pressure and temperature are maintained at 200kPa and 25C. The diffusivity is 0.08cm2/s. At some initial time, t=0, diffusion occurs between the two tanks. How long will it take for the mole fraction of the nitrogen to reach 0.7 on one end and 0.25 at the other end? Determine at this time, 1) the rates and directions of mass transfer of carbon dioxide and nitrogen 2) the velocities of each species 3) the molar average velocity of the mixture Introduction to Mass Transfer Determination of Rate of Diffusion with Estimation of Diffusivity Collaborative Problem Statement: A test tube, 1.5cm in diameter and 18cm long, has 0.4 gm camphor (C10H16O) in it. How long will it take for camphor to disappear? The pressure is atmospheric and temperature is 20C. The sublimation pressure of camphor at this temperature is 97.5mmHg; diffusivity of camphor can be estimated by using Fuller's Equation. Identify/Formulate/Solve: B= Air Psat=97.5mmHg