Difference between revisions of "Constants"
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Deltacarlos (talk | contribs) m (: Corrected units for R (L was written as the numeral 1), and changed dm^3 to L (same thing, but much more commonly used)) |
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Planck's constant: 6.23 x <math>10^{-34} \frac{Joules}{Hertz}</math> | Planck's constant: 6.23 x <math>10^{-34} \frac{Joules}{Hertz}</math> | ||
| − | R = 0.0821 <math>\frac{ | + | R = 0.0821 <math>\frac{L \cdot atm}{mole \cdot K}</math> or 8.314 <math>\frac{L \cdot kPa}{mole \cdot K}</math> |
Revision as of 18:39, August 1, 2007
1 atm = 101.1 kPa
1.000 calorie = 4.184 Joules
1 Calorie = 1000 calories
760 torr = 1 atm
760 mm Hg = 1 atm
Atomic mass unit: 1.00 amu = 1.67 x <math>10^{-27}</math>kg
Avogadro's number: 6.02 x <math>10^{23}</math> particles/mole
Planck's constant: 6.23 x <math>10^{-34} \frac{Joules}{Hertz}</math>
R = 0.0821 <math>\frac{L \cdot atm}{mole \cdot K}</math> or 8.314 <math>\frac{L \cdot kPa}{mole \cdot K}</math>
Standard Temperature and Pressure (STP): temperature = 273 K and pressure = 1.00 atm
| Mass | Charge | |
|---|---|---|
| Proton | 1.67 x <math>10^-27 </math> kg | +1 |
| Neutron | 1.67 x <math>10^-27 </math> kg | 0 |
| Electron | 9.11 x <math>10^-31 </math> kg | -1 |