In a packaging of dry grapes, the packaging material is made of polyethylene. The dry grapes have certain moisture content. Which of the following is true with respect to the diffusion of certain amount of moisture through the packing?
(a) The moisture will not diffuse
(b) The diffusion in this case is called permeability
(c) None of the mentioned
(d) Neither of the mentioned
I had been asked this question by my college professor while I was bunking the class.
I would like to ask this question from Unit Operations topic in division Heat Transfer Equipment, Microwave Heating, Evaporation, Diffusion and Mass Transfer and Dehydration of Food Engineering