A 2.00 x 10^4 -liter storage tank was taken out of service to repair and reattach a feed line damaged in a collision with a tanker. The tank was drained and then opened several days later for a welder to enter and perform the required work. No one realized, however that a large volume of liquid nonane (C9H20) remained in a collection sump at the bottom of the tank after the draining had been completed. Nonane has a lower explosion limit of 0.80 mole% and an upper explosion limit of 2.90 mole%* (i. e., nonane-air mixtures at 1 atm can explode when exposed to a spark or flame if the nonane mole fraction is between the two given values). Required:
How many liters of liquid nonane would be required to evaporate in order to meet the lower explosion limit?