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## Appendix A.1. Fundamental Constants and Conversion Factors

TABLE A.1-1. Gas Law Constant R

TABLE A.1-2. Volume and Density

1 g mol ideal gas 0061t 0°C, 760 mm Hg = 22.4140 liters = 22 414 cm3

1 lb mol ideal gas at 0°C, 760 mm Hg = 359.05 ft3

1 kg mol ideal gas at 0°C, 760 mm Hg = 22.414 m3

Density of dry air at 0°C, 760 mm Hg = 1.2929 g/liter = 0.080711 lbm/ft3

Molecular weight of air = 28.97 1bm/1b mol = 28.97 g/g mol

1 g/cm3 = 62.43 1bm/ft3 = 1000 kg/m3

1 g/cm3 = 8.345 1bm/U.S. gal

1 1bm/ft3 = 16.0185 kg/m3

TABLE A.1-3. Length

1 in. = 2.540 cm

100 cm = 1 m (meter)

1 micron = 10-6 m = 10-4 cm = 10-3 mm = 1μm (micrometer)

1 Å (angstrom) = 10

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