The tme for which the oxygen atom remains adsorbed on a tungsten surface is 0.36sat 2550 k. and 3.49 at 2360 k. caleulate the activation energy of desorption of

The tme for which the oxygen atom remains adsorbed on a tungsten surface is 0.36sat 2550 K. and 3.49 at 2360 K. Caleulate the activation energy of desorption of oxygen atom. Atom, assuming that the oxygen atoms is tightly chemisorbed, calculate the pre-exponential factor t in the Arrhenius- type expression. .