State whether each statement below is True (T) or False (El. Use your best engineering judgment"....
State whether each statement below is True (T) or False (El. Use your best engineering judgment". 1. Phenomenological laws classify and describe phenomena based on observation of macroscopic behavior without explanation of microscopic behavior. 2. Fourier's Law of Heat Conduction states that the heat flux is directly proportional to the temperature gradient. 3. A "gray surface" absorbs the same magnitude of radiation as a “black surface". 4. A "black surface" surfaces emit less radiation than does a "gray surface". 5. A "gray surface" has a constant value of emissivity that is independent of temperature. 6. The "view factor" F, depends on surface emissivity and surface geometry. 7. Forced convection flow is a flow driven by buoyant forces resulting from temperature differences in the fluid. 8. Fully developed laminar and turbulent flows in a pipe require an entrance length of 120 and 40 pipe diameters, respectively. 9. The convective heat transfer for laminar flow is dependent on the fluid velocity in the pipe. 10. The convective heat transfer for turbulent flow is dependent on the fluid velocity in the pipe.