how can osmosis happen?(渗透作用为什么会发生?)
how can osmosis happen?(渗透作用为什么会发生?)
sorry,i don't know how to explain osmosis in chinese.anyway.
when osmosis happens,water molecules would go through membranes and toward to the high concentration.One thing that i can not understand is that,when osmosis happens,the moving of the water molecules contributed the kinetic energy,thus can convert to potential energy.it is only likely because thus perputual motion can be made.Then,what provide the kinetic energy of the water molecules?Is that interal energy?since everything gets internal energy!
osmosis可能可以解释为渗透作用吧,因为osmosis只是水的渗透.
我知道为什么水会渗透,是因为两边的压力不同所导致.但是为什么这种压力不同就可以导致了水的渗透作用呢?
因为水向高浓度的地方流动,但是水的流动就导致了动能的产生,从而就有势能的产生.这样,就有一个永动机的模型了.但是总所周知,永动机是不符合热力学第二定律的,所以说,我想知道水的动能是有什么提供的?是溶液的内能吗?或者说热能?因为水结冰后就绝不可能有渗透作用的产生了.而且随着渗透作用的进行,水的温度会降低吗?如果如此,那么便是水的热量提供了水分子的流动了.