3. (a) Determine the diffusion coefficient of O2 (σ = 0.40 nm2 ) at 1 bar...

3. (a) Determine the diffusion coefficient of O2 (σ = 0.40 nm2 ) at 1 bar and 25 o C?

(b) The diffusion coefficient of C2H6 at 298 K and 1.00 atm is 1.307×10-5 m2 s-1 . What is the collision diameter of C2H6 based on its diffusion coefficient?

(c) Calculate the rate of diffusion, Jz of a gas at 300 K with λ = 1.00 × 10-5 cm, d = 3.16 × 10-8 cm, and M = 30.0 g mol-1 , if a concentration gradient is 1.00 × 10-7 mol cm4 ?

(d) The sheets of copper area of 1.50 m2 are separated in air by 10.0 cm. What is the rate of heat transfer from the warm sheet, 50°C to the cold sheet, - 10°C?

Given : κ (air) = 0.1241 J K-1 m-1 s-1

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Amanda K answered 2 months ago

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