PHYSICAL CONSTANTS: | Useful Equations: |
R = 8.314 J mol-1 K-1 | Λ = κ/c , G =1/R= κ (A/l) |
R = 0.08314 L bar K-1 mol-1 | Λ = λ+ + λ- |
kB = 1.381 x 10-23 J K-1 | α = Λ/Λo |
1 J = 1 kg m2 s-2 | K = cα2/(1 – α) |
1 atm = 1.101325 x 105 Pa | Λm = Λom – K (c/co)1/2 1/Λm = 1/Λom + cΛm /[(Λom)2 Ka ] |
1 atm = 1.01325 x 105 Pa; 1 bar = 105 Pa; | in water at 25 oC: B = 0.5092 M-½ |
1 Torr = 1 mmHg = 133.322 Pa | |
g = 9.81 m s-2 | ΔΦ = RT/zF ln (c1/c2) RT/F= 0.0257 at 298 K |
0 °C= 273.15 K | E = E° – (RT/z F) ln(Q) |
L = 6.022 x 1023 mol-1 (Avogadro's number) | ΔG = - zFE |
h = 6.626 x 10-34 J s | ΔS = z F (∂E/∂T)p |
F = 96500 C mol-1 | ΔG= ΔH-TΔS |
c = 2.998 x 108 m s-1 (speed of light) | |
εo = 8.854x10-12C2N-1m-2 ε = 78 at 25oC | pH = - Log [H+] Kw= [OH-] [ H+] |
e = 1.602x10-19 C | ΔGosolvation =(1/εr – 1)z2e2NA/(8πεor) |
E° = (RT/z F)ln(ko) | κ = [2e2NA(1000 L m-3)/(εokBT)]1/2 [ρsol I/εr]1/2 |
aa' = t+ Q/FcA (travelled distance) | ΔG=RT ln (c1/c2) |