Surface Energy of Materials

From literature, give the rule for how metal surfaces change with temperature in terms of surface
energy.
From literature, what have been the reported values for surface energy of stainless steels at
1000F.
provide a table of surface energies at 1000F (if possible) for different materials including,
stainless steel grades, nickel alloys and oxide ceramics.
What should be the difference in surface energies of tar/heavy hydrocarbons and surfaces in
order for the tar/ heavy hydrocarbons to not adhere to the surfaces? Explan why