Question

Permeability is calculated using ________ and _________

(a) diffusion, solubility

(b) permeance, solubility

(c) diffusion, permeance

(d) transmittivity, solubility

I had been asked this question at a job interview.

My enquiry is from Diffusivity and Permeability in Plastics topic in division Thermoplastic Polymers Properties & Processing of Food Packaging Technology

Answer 1

Correct choice is (a) diffusion, solubility

Easy explanation: Permeability is calculated using Diffusion and Solubility. Permeability is the product of diffusion and solubility. When a gas/vapour passes through the plastic film, it solubilizes first and then diffuses through the film.