Useful Units:

Pressure

pascal - 1 Pa = 1 N m -2 = 1 kg m -1 s -2 = 1 J m -3.

bar - 1 bar = 10 5 Pa

atmosphere - 1 atm = 101 325 Pa

torr - 1 Torr = (101 325 Pa/760 mmHg) = 133.32... Pa

millimeter of mercury - 1 mm Hg = 133.322 Pa

pound per square inch - 1psi = 6.894 757 kPa


Others

Boltzmann constant - k = 1.381 × 10 -23 J K -1

Gas constant - R = 8.314 47 JK -1mol -1 = 8.314 47 × 10 -2 L bar K -1 mol -1 = 8.205 74 × 10 -2 L atm K -1 mol -1 = 6.236 37 × 10 1 L Torr K -1 mol -1.


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