Consider steady heat transfer between two large parallel plates atconstant temperatures of T$1=227$ C and T$2=27$ C that are L $=0\mathrm{.}1$ m apart,and area is considered to be $100$ cm$?$ Assuming the surface to be black$($emissivity $=1).$ Determine the rate of heat transfer between the platesper unit surface area assuming the gap between the plates is filled with atmospheric air, evacuated, filled with urethane insulation and filled with superinsulation. Please see the MCQ to be more specific$\mathrm{.}20$marksGiven, the thermal conductivity at the average temperature of $250$K is k$=0\mathrm{.}0219$ W$/$m$.$K for air, $0\mathrm{.}026$ W$/$m$.$K $=$ urethane insulation and $0\mathrm{.}00002$W$/$m$.$K $=$ superinsulation.Assumption: Steady operating conditions exist, there are no natural convection current between the plates, The surfaces are black and thus emissivity $=1$