Tag: molecule

Molecular Theory Application to Biology

 We have introduced a molecular model for osmosis and have shown that free molecules exist in liquids and solids.   The number of free molecules is directly related to vapor pressure and the temperature of the substance.   From the osmosis experiment we find that water moves from the pure waterside (higher vapor pressure) through the membrane ….  Read More

Vapor Pressure

Others have suggested that vapor pressure is the driving force for osmosis, they were slapped in the face also.    Osmotic pressure is approximately 140 times greater than vapor pressure. We asked the question what is vapor pressure?  Frankel (1943) suggested that liquids and solids can be represented as crystal lattice structures with molecules at the ….  Read More