Molecular Weight
Molecular weight, abbreviated as MW, also called molecular mass, refers to the average mass of one molecule of a substance, 1⁄12 (0.083) the mass of carbon 12 atom.
Molecular weight formula
\(\large{ MW = \frac{ R^* }{ R } }\) |
Where:
Units | English | Metric |
\(\large{ MW }\) = molecular weight | \(\large{\frac{lbm}{lbmol}}\) | \(\large{\frac{kg}{kmol}}\) |
\(\large{ R }\) = specific gas constant | \(\large{\frac{ft-lbf}{lbm-R}}\) | \(\large{\frac{J}{kg-K}}\) |
\(\large{ R^* }\) = universal gas constant | \(\large{ \frac{lbf-ft}{lbmol-R} }\) | \(\large{ \frac{J}{kmol-K} }\) |
Tags: Equations for Weight