A rod with uniform cross-sectional area of 2 in2 and thermal conductivity of 3 Btu/ (h-i...

A rod with uniform cross-sectional area of 2 in² and thermal conductivity of 3 Btu/ (h-in.-° F) has heat flow in the x direction only (Figure P13–3). The right end is insulated. The left end is maintained at 50 ° F, and the system has the linearly distributed heat flux shown. Use a two-element model and estimate the temperature at the node points and the heat flow at the left boundary.