Question-3. A piece of titanium (Ti) sheet in a thickness of 5 mm was exposed to a nitrogen-rich gas atmosphere on one side and a nitrogen-deficient atmosphere on the other side at 850 °C. After having reached steady-state, the metal sheet was quickly cooled to room temperature. The nitrogen concentrations at the two surfaces were determined to be 0.02 and 0.0018 wt%. The densities for nitrogen (N) and Ti are 0.808 g/cm³ and 4.5 g/cm³, respectively. Answer the following questions: (a) Convert the nitrogen concentrations from weight percent to kilograms per meter cubed. (b) Compute the diffusion coefficient if the diffusion flux is 2.58 × 106 kg/m²-s.

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Distillation

Distillation is a process/technique to separate more volatile components from less volatile components using the principle of relative volatility. In chemical engineering, distillation is one of the most common and important topics that is involved in almost every industry and process.