A dry food product is contained in a using a polymer fi lm to protect the oxygen sensitivity of the.


A dry livelihood effect is contained in a using a polymer fi lm to protect the oxygen sensitivity of the effect. The energy gradient across the fi lm is defi ned by the oxygen energy in air and 1% among the load. The oxygen diffusivity for the polymer fi lm is  m 2 /s. Estimate the fi lm thickness needed to fix a effect rejection morals of 10 months. The rejection morals of the effect is orderly as the era when oxidation reactions among the effect keep used 0.5 mol of oxygen.