The diffusion equations 2t + q g = (1/ ) (d t/d r)

• A. nGoverns the temperature distribution under unsteady heat flow through a homogeneous and isotropic material. The Fourier equation follows from this expression when
• B. Temperature doesn t depends on time
• C. There is no internal heat generation
• D. Steady state conditions prevail
• E. There is no internal heat generation but unsteady state condition prevails