An open circular tank 4 m in diameter contains ethanol at 25oC exposed to the atmosphere in such a manner that the liquid is covered with a stagnant air film estimated to be 7 mm thick. The whole resistance to mass transfer is restricted to this gas film, i.e. the concentration of ethanol beyond the stagnant film is negligible. The vapor pressure of ethanol at 25oC is 58.6 mm Hg. If ethanol is worth 20 TL per liter, what is s the value of the loss of ethanol from this tank in TL per day? The specific gravity (S.G.) of ethanol is 0.789 . MWEthanol = 46