Given a thermal conductivity constant of a material of 0 4, a surface area of 100 square feet, a temperature on the far side of a material of 165°f and a temperature of 150°f on the near side, and a material thickness of 1.5 inches, what is the conductive heat transfer rate? 2400 f per ft. 4800 f per ft. 3600 f per ft. 6400 f per ft.