As a result of a chemical spill, benzene is evaporating at the rate of 1 gram per minute into a room that is 6 m * 6 m * 3 m in size and ahs a ventilation rate of 10m^3/min
a. Compute the steady-state concentration of benzene in the room. (I have already done this)
b. Assuming the air in the room is initially free of benzene, compute the time necessary for benzene to reach 95% of the steady-state concentration.