A one-dimensional plane wall is exposed to convective and radiative conditions at x = 0. The ambient and surrounding temperatures are To 20°C and Tsur 40°C, respectively. The convection heat transfer coefficient is h 20 W/m2 K, and the absorptivity of the exposed surface is a 0.78. Determine the convective and radiative heat fluxes to the wall at x 0 if the wall surface temperature is T 24°C. Assume the exposed wall surface is gray, and the surroundings are large.