1.Three identical rooms, each contain a 55gallon drum of a chemical or chemical mixture. Drum #1contains gasoline (6 mole %benzene). Drum #2 contains purebenzene. Drum #3 contains paint (2 mole % benzene). Rank the rooms from highest to lowest equilibrium concentration ofbenzene in the room air. Justify your answer.
2.Using a steel with Fy = 50ksi, whatuniformaly distributed service load can a simple supported W33 x118 carry for a span of 40 ft when (a) the compression flange isbraced laterally for its full length, and (b) lateral bracing issupplied at the ends only?