Aone-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.