Density and Pressure

1 g/cm³ → lb_m/ft³ , lb_m/gal

1 g/cm³ = 62.4 lb_m/ft³ = 8.33 lb_m/gal

1 g-mol of ideal gas at 0^oC, 760 mm Hg

22.4 L

1 lb-mol of ideal gas at 32^oF, 14.7 psia

359 ft³

1 atm → mm Hg at 0^oC (torr) , lb_f/in² (psi)

1 atm → 760 mm Hg at 0^oC (torr) , 14.7 lb_f/in² (psi)

1 atm → in. Hg, ft H₂O

1 atm → 29.92 in. Hg, 34 ft H₂O

1 atm → bar, kPa, dynes/cm²

1 atm → 1.013 bar, 101.3 kPa, 1.013 × 10⁶ dynes/cm²

1 Pa → N/m²

1 Pa = 1 N/m²

Systemic blood pressure

120/80 mmHg

P_A = ??

P_A = P_atm + P_g

Standard temperature and pressure (STP)

0ºC, 1 atm