Given the following data for physical adsorption of nitrogen on alumina at $-183C,$ compute the BET surface area in $\frac{m^2}{g}.$ The density of nitrogen at $-183C$ is $0\mathrm{.}751\frac{g}{c}{m}^3.$

$\backslash$table$[[\frac{P}{P_0},0\mathrm{.}01,0\mathrm{.}08,0\mathrm{.}15,0\mathrm{.}30,0\mathrm{.}44],[V,c\frac{m^3}{g}$ at STP$,75,100,120,140,180]]$