Mechanical equivalent of heat = 4.186 joule/cal = 777.9 ft‐lbf/Btu = 1055 joule/Btu | |||
Universal gas constant = 8314.3 J/kg‐mol‐K = 1545 ft‐lbf/lbm‐mol‐°R | |||
Molecular volume of an ideal gas = 22.41 liter/kg‐mol at standard conditions | |||
Electron charge = 1.60218 × 10−19 coulomb | |||
Permittivity of vacuum = 8.854187 × 10−12 farad/m | |||
Gravitational constant = 6.674 × 10−11 m3/kg‐sec2 | |||
Boltzmann's constant | 1.38065003 × 10−23 J/K | ||
Electron mass | 9.109381 × 10−31 kg | ||
Avogadro's number | 6.02252 × 1026/kg‐mol | ||
Stefan–Boltzmann constant | 5.6696 × 10−8 W/m2‐K−4 |