Page 467 - Schaum's Outline of Theory and Problems of Applied Physics

APPENDIX A

Physical Constants

and Quantities

Quantity Symbol Value

◦
◦
Absolute zero 0K,0 R −273 C =−460 F
◦
2
Acceleration of gravity of earth’s surface g 9.81 m/s = 32.2 ft/s 2
23
Avogadro’s number N 6.023 × 10 atoms or molecules per mole
Boltzmann’s constant k 1.38 × 10 −23 J/K
9
2
Coulomb constant k 8.99 × 10 N·m /C 2
Electron charge e 1.60 × 10 −19 C
Electron mass m e 9.1 × 10 −31 kg
2
Gravitational constant G 6.67 × 10 −11 N·m /kg 2
2
= 3.44 × 10 −8 lb·ft /slug 2
Molar volume at STP V 0 22.4 L/mol
Permeability of free space µ 0 4π × 10 −7 T·m/A
2
2
Permittivity of free space ε 0 8.85 × 10 −12 C /(N·m )
Planck’s constant h 6.626 × 10 −34 J·s
2
4
Stefan-Boltzmann constant σ 5.67 × 10 −8 W/(m ·K )
3
Universal gas constant R 8.31 × 10 J/(mol·K)
= 0.0821 atm·L/(mol·K)
8
Velocity of light in free space c 3.00 × 10 m/s

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