Final answer:
To calculate the number of kilograms of nitrogen that pass through the steel sheet per hour, we can use Fick's first law of diffusion.
Step-by-step explanation:
Calculating Nitrogen Diffusion Rate
To calculate the number of kilograms of nitrogen that pass through the steel sheet per hour, we can use Fick's first law of diffusion:
Flow rate = (D × A × ΔC) / Δx
Where:
- Flow rate is the amount of substance that passes through a unit area in a unit time, measured in kg/h
- D is the diffusion coefficient for nitrogen in steel, which can be looked up in a table or obtained through experimental data, measured in m²/s
- A is the area of the sheet, given as 0.28 m²
- ΔC is the concentration difference of nitrogen across the sheet, measured in kg/m³
- Δx is the thickness of the sheet, given as 2.8 mm
Once we have the flow rate, we can convert it to kilograms per hour.