物质被分割成微小颗粒后的物理化学性质

PHYSICAL CHEMISTRY PROPERTY OF SUBSTANCES BEING CUT INTO THE PARTICLES

物质的物理化学性质,例如蒸气压,溶解度,熔点和化学平街等性质,随着物质分散度的增大而会发生变化。这是因为物质分散度增大,物质表面积就会迅速加大,相应的物质表面能也要增大,所以分子逸出能力增强,因而导致过热、过冷、过饱和以及平衡常数的变化等现象的发生。

The physical chemistry property of the substance,e.g.steam pressure, solubility,melting point,chemical equilibrium etc,varies with the disper- sion degree,for the higher the dispersion degree of the substance,the larger the surface area and the more the relative surface energy.Therefore, this increased great molecular escaped ability would result in overheat, overcold,oversaturaturation,the changes of equilibrium constant and some other phenemena.