In Fig. P216 the 20°C water and gasoline surfaces are open to the atmosphere and at the same elevation. What is the heig h of the third liquid in the right leg? Gasoline 1.5 m Im iquid, SG = 1.60

Mr.X performs the laboratory test and determines that 12 mg/l of alum dose is required to treat the water. What is the quantity of alum required to treat 14 million liters of water per day at a treatment plant. Also determine the amount of carbon dioxide gas produced per liter of water during treatment. B I U GGG 25 85 ET M 69

Air in a large tank, at 300 °C and 400 kPa, fl ows through aconverging-diverging nozzle with throat diameter 2 cm. Itexits smoothly at a Mach number of 2.8. According to onedimensionalisentropic theory, what is (a) the exit diameter,and (b) the mass fl ow?

Subject is Environmental Engineering