Calculate the steady state flux of nitrogen across a copper plate at 1200°C. The diffusion coefficient of N in Cu is D = 2.5 x 10- 11 m²/s, and the steady state concentration gradient is 0.4 kg/m³ across the 35 cm thick plate. Express your answer to one decimal place with the format x 10-11, in units of kg m-² s-1

Calculate the steady state flux of nitrogen across a copper plate at 1200°C. The diffusion coefficient of N in Cu is D = 2.5 x 10- 11 m²/s, and the steady state concentration gradient is 0.4 kg/m³ across the 35 cm thick plate. Express your answer to one decimal place with the format x 10-11, in units of kg m-² s-1