Title: Integration a Design of Experiment in the Mass Transfer Laboratory to Investigate the Effect of Temperature Change on Diffusion Coefficient of Acetone in Air
Authors: Mohammad Yousef Younes, Hasan Al-aji, Mohammad Al-Bajhan, Ahmed Al-Saif
Volume: 1
Issue: 10
Pages: 9-12
Publication Date: 2017/12/28//
Abstract:
: An experiment was developed in the mas transfer laboratory to test the diffusion of Acetone in the air. In this approach, Students designed an experiment to investigate and test the change of diffusion rate of Acetone in air by measuring the change of the level surface. Applying Fick's Law in which diffusion of a fluid into stagnant Air is applied. Acetone was selected since it has a relatively high vapor pressure, which increase the evaporation rate, thus the diffusion will be increased and can be observed in a brief time. The diffusion coefficient was calculated at different temperatures and it was found that deviation of the results from the actual one was acceptable. For example; at 298.15 K the diffusion coefficient was found to be cm3/s compared with 0.109 cm3/s in literature. This type of experiments improve the understanding of students to transfer of masses through air and give them the opportunity to observe several fundamental concepts in mass transfer.