You know that widely used plastic bottles of carbonated drinks are made from PET plastic. Considering that CO2 is permea
Posted: Mon May 16, 2022 7:06 am
You know that widely used plastic bottles of carbonated drinks
are made
from PET plastic. Considering that CO2 is permeable for PET
plastic, what is the
diffusion flux at 298 K? Note that permeability coefficient for
carbon dioxide is
0.5⋅10−13[cm2
s⋅Pa], pressure inside and outside the bottle are 1 MPa and 0.1
kPa,
respectively. Let’s consider that bottle is a hollow cylinder with
diameter of 30 mm,
height of 100 mm and thickness of 0.05 cm. What is expiration date
of this bottle if
it considers decarbonized when 500 cm3 of CO2 will diffuse?
Assuming a condition
of steady state diffusion, calculate diffusion flux at 350 K if
activation energy is
50 kJ/mol. How fast will the bottle lose fizz in this case? Compare
two cases.
are made
from PET plastic. Considering that CO2 is permeable for PET
plastic, what is the
diffusion flux at 298 K? Note that permeability coefficient for
carbon dioxide is
0.5⋅10−13[cm2
s⋅Pa], pressure inside and outside the bottle are 1 MPa and 0.1
kPa,
respectively. Let’s consider that bottle is a hollow cylinder with
diameter of 30 mm,
height of 100 mm and thickness of 0.05 cm. What is expiration date
of this bottle if
it considers decarbonized when 500 cm3 of CO2 will diffuse?
Assuming a condition
of steady state diffusion, calculate diffusion flux at 350 K if
activation energy is
50 kJ/mol. How fast will the bottle lose fizz in this case? Compare
two cases.