Question

plz tell the correct answer​

Answer 1

Answer:

S2 is true but S1 is false

Answer 2

Answer:

In an air-carbon dioxide mixture at 298 K and 202.6 kPa, the concentration of CO2 at two planes (3 mm) apart are 15 vol.% and 25 vol.%. The diffusivity of CO2 in air at 298 K and 202.6 kPa is 8.2*10-6 m 2 /s. Calculate the rate of transfer of CO2 across the two planes, assuming:

a. Equimolecular counter diffusion.

b. Diffusion of CO2 through a stagnant air layer.