Please solve in detail for mass transfer

If a beaker of ethyly alcohol was acciderisaly upset, coavering the top of laboratory bench. The exilust fan in the laboratory hood produced par al a 6m/s air flow parralele to the surface, following a cross the Lm wide bench. The. air was mantalined at 298K and 1 atm. The vapor pressure of ethyle alchol at 248K is 4000Pa. Determine the amount of a/chal evaporated from one square meter suffale area 7(1) each Go sec. The diffusivity of ethand inte air is 1.26/o5m/s