Find the steady state temperature in the middle of a \(10 \mathrm{~cm}\) bar whose sides in the \(y\) - and \(z\)-directions can be ignored and the temperature of the right (at \(x=10 \mathrm{~cm}\) ) is fixed at 0 degrees Celsius and the flux on the left is \(1 \mathrm{~W} / \mathrm{m}^{2}\). The thermal conductivity is \(0.6 \frac{\mathrm{W}}{\mathrm{mK}}\).