1.It has been determined that the steady-state diffusion flux of a gas molecule through a solid metal plate is 5*10^-8 kg/m^2*s at a temperature of 1000K, and a concentration gradient of -300 kg/m^4. What concentration gradient is necessary to give a diffusion flux of 6*10^-8 at a temperature of 1300K if the activation energy for diffusion is 120,000 J/mol?
2.Create a depreciation schedule showing annual depreciation amounts and end-of-year book values for a $26,000 asset with a 5 year service life, using the MACRS depreciation method.