Biochemistry I Fall Term, 2000
Some Fundamental Constants &
Numbers
| Constant or Number |
Symbol |
Value |
cgs units |
| Speed of light
| c |
3.00E+10 |
cm/sec |
| Avogadro No.
| No |
6.02E+23 |
mol-1 |
| Planck's
| h |
6.63E-27 |
erg-sec |
| Boltzmann's
| k |
1.38E-16 |
erg/K |
| Gas constant
| R |
1.987 |
cal/K-mol |
| Gas constant
| R |
8.31E+07 |
erg/K-mol |
| Electron mass
| m |
9.11E-28 |
g |
| Atomic mass unit
| d |
1.66E-24 |
g |
| pi
| |
3.14159 |
|
| e
| |
2.718 |
|
| ln(10)
| |
2.303 |
|
Coversion Factors for Energy
Units (g-cm/sec )
| Units
| kcal/mol |
kJ/mol |
erg |
eV |
cm-1 |
| 1 kcal/mol =
| 1 |
4.18E+00 |
6.95E-14 |
4.34E-02 |
3.50E+02 |
| 1 kJ/mol =
| 2.39E-01 |
1 |
1.66E-14 |
1.04E-02 |
8.36E+01 |
| 1 erg =
| 1.44E+13 |
6.02E+13 |
1 |
6.24E+11 |
5.03E+15 |
| 1 eV =
| 2.31E+01 |
9.65E+01 |
1.60E-12 |
1 |
8.07E+03 |
| 1 cm-1 =
| 2.86E-03 |
1.20E-02 |
1.99E-16 |
1.24E-04 |
1 |
To convert from energy units in the
first column to units in the first row,
multiply by the factor at their
intersection.
The tables are adapted from those in Physical Chemistry with Applications
to the Life Sciences (1979) Eisenberg, D. & Crothers, D. The
Benjamin/Cummings Publishing Co.
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