t*****e
发帖数: 133 | 1 各位大牛，请帮忙看看这个作业题，谢谢。
The following method is used to measure the molecular weight of very heavy
molecules. A liquid containing the molecules is spun rapidly in a centrifuge
, which establishes a variation in the density of the liquid. The density is
measured, such as by absorption of light, to determine the molecular weight
. Assign a fictitious "centrifugal" force to act on the molecules and show
that the density varies as
rho(molecule)=rho(liquid)exp(mw^2x^2/2kT), where w is the angular velocit | C********n
发帖数: 6682 | 2 大分子
有心力场
这不就是个麦克斯韦分布吗
centrifuge
is
weight
【在 t*****e 的大作中提到】
: 各位大牛，请帮忙看看这个作业题，谢谢。
: The following method is used to measure the molecular weight of very heavy
: molecules. A liquid containing the molecules is spun rapidly in a centrifuge
: , which establishes a variation in the density of the liquid. The density is
: measured, such as by absorption of light, to determine the molecular weight
: . Assign a fictitious "centrifugal" force to act on the molecules and show
: that the density varies as
: rho(molecule)=rho(liquid)exp(mw^2x^2/2kT), where w is the angular velocit
| t*****e
发帖数: 133 | |
|
