Answer questions 1 and 2 please as soon as possible please t

Answer questions 1 and 2 please as soon as possible please, this is for chemical engineering

1. At 90 F and 30.0 psi absolute the volume per unit weight of a certain gas was 11.4 ft^3/lb. Determine its gas constant, R, and the density, p. 2. If 8 m^3 of oil weighs 67 kN, calculate its specific weight, y, density, p, and specific gravity, SG. 3. What is the difference between R and Ru? How are these two related?

Solution

1. Data given is the condition of gas i.e temperature and pressure and specific volume

By using equation of State PV=nRT, ° R= 460 + ° F
R= P/(specific volume . T) = [(30.0 × 144)11.4]/460+90 = 89.5 ft/° R

density = specific weight / gravity = 1 / ( volume × gravity ) = 1 / (11.4 × 32.2) = 0.00272 slugs/ft³