A cylindrical gas tank 3 ft long, inside diameter of 8 in., is evacuated and then filled with carbon dioxide gas at 77 F. To what pressure should it be charged if there should be 2.6 lbm of carbon dioxide?
Assume CO2 is an ideal gas P = mRT/V
Vcyl = A × L = π/4 (8)2 × 3 × 12 = 1809.6 in3
P = 2.6 × 35.1 × (77 + 459.67) × 12/1809.6 = 324.8 lbf/in2
