If you place 1.0 L of ethanol (C₂H₅OH) in a room that is 3.0 m long, 2.5 m wide, and 2.5 m high, will all the alcohol evaporate? If some liquid remains, how much will there be? The vapor pressure of ethanol at 258C is 59 mm Hg, and the density of the liquid at this temperature is 0.785 g/cm³.