A thermopane $($thermally insulated glass$)$ window that is $0\mathrm{.}6$ m long by$0\mathrm{.}3$ m wide comprises two $8$ mm thick pieces of glass sandwiching an$8$ mm thick stagnant air space. The thermal conductivity of glass is $1\mathrm{.}4$W$/$m K and that of air is $0\mathrm{.}025$ W$/$m K$.$ The window separates room airat $20\backslash$deg C from outside ambient air at $10\backslash$deg C$.$ The convection coefficientsassociated with the inner $($room side$)$ and the outer $($ambient$)$ surfacesare $10$ W$/$m$2$K and $80$ W$/$m$2$K respectively. $($a$)$ Determine the heat lossthrough the window, and the two surface temperatures. $($b$)$ What wouldbe the heat loss if the window had a single glass of $8$ mm thicknessinstead of a thermopane?