1.The saturated unit weight of a soil is 128 lb/ft^3 Given specific gravity=2.74 determine the dry unit weight?
2.A tank of Compressed oxygen for flame cutting is to contain 10 kg of oxygen at a preassure of 14 MPA ( the temperature is 20 degrees Celsius). How large must be the tank volume? What is the diameter of a sphere with this volume?
3.Neon gas at 50 degrees C in a vertical cylinder of diameter 150 mm has a 6 kg frictionless piston mounted. The outside pressure is 98kPa and the neon volume is 4000cm^3. Find the mass of neon.
4.If you have 1 liter of ammonia at room temperature and pressure (20 Celsius, 100kPa). How much mass is that?