If you took my advice about setting up your software to calculate terminal settling speed of a particle of any sizeand density in air at any temperature and pressure, this question should be trivial plug in the values of the variables and outshould pop your answers! Consider spherical particles falling due to gravity in a pressurized tank experiment. The air in thetank is at $46\mathrm{.}7$oC and $203\mathrm{.}1$ kPa. The particle diameter of interest is $81\mathrm{.}5$ microns and the particle density is $3382$ kg$/$m$3.($a$)$ Assume Stokes flow and estimate the terminal settling speed $($in units of m$/$s$)$ of these particles using the Stokes flowapproximation. Calculate the Reynolds number of these falling particles. Is it within the Stokes approximation range of validity? Is the Stokes approximation reasonable for this case?$($b$)$ Repeat using the more general settling speed equation $($not using Stokes approximation$).$ You may need to iterate asdiscussed in class. What is the terminal settling speed in m$/$s$?$