IIT JEE , AIEEE Forum - Chemistry , Physical Chemistry

julie

Wat is da value of Rydberg const.....?

I know not just 1 value but atkleast 5 !!!

wanna know the exact value.....pls...

vasanth

R_H = 1.09 * 10^-7 m^-1

do rate me

cheeeers

$R_M = \frac{R_\infty}{1+m_e/M} \$

where,

$R_M \$ is the Rydberg constant for a certain atom with one electron with the rest mass $m_e \$

$M \$ is the mass of its atomic nucleus.

The "infinity" Rydberg constant is (according to 2002 CODATA results):

$R_\infty = \frac{m_e e^4}{(4 \pi \epsilon_0)^2 \hbar^3 4 \pi c} = \frac{m_e e^4}{8 \epsilon_0^2 h^3 c} = 1.0973731568525(73) \cdot 10^7 \,\mathrm{m}^{-1}$

where,

$\hbar \$ is the reduced Planck's constant,

$m_e \$ is the rest mass of the electron,

$e \$ is the elementary charge,

$c \$ is the speed of light in vacuum, and

$\epsilon_0 \$ is the permittivity of free space.

This constant is often used in atomic physics in the form of an energy:

$h c R_\infty = 13.6056923(12) \,\mathrm{eV} \equiv 1 \,\mathrm{Ry} \$

for more info refer to : http://en.wikipedia.org/wiki/Rydberg_constant

cheeers!

chimanshu_007

exact is 109678

punitcooldude

10967758.341+ 0.001m^-1

mastermind890

The value to be used for IITJEE is 109678 per meter.

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