Recent content by Hilarycheung

Thank you for your replying=) i think there are too little information given, i should have done more research.

How to calculate the time needed for a perfectly spherical balloon with radius R to become R/2 due to diffusion of the gas inside, which is assumed to be nitrogen, by using Fick's Law of diffusion. Let the Young's Modulus be E. Fick's First law: J=-D∂C/∂x the change in pressure...