A) 81 : 100
B) 100 : 81
C) 10 : 9
D) 9 : 10
Correct Answer: D
Solution :
Key Idea According to Grahams law of diffusion \[r\propto \frac{1}{\sqrt{\,M}}\] \[\frac{{{r}_{1}}}{{{r}_{2}}}=\sqrt{\frac{{{M}_{2}}}{{{M}_{1}}}}\] Here, \[{{M}_{1}}=100\] \[{{M}_{2}}=81\] So, \[\frac{{{r}_{1}}}{{{r}_{2}}}=\sqrt{\frac{81}{100}}=\frac{9}{10}\] \[{{r}_{1}}\,:\,{{r}_{2}}=9:10\]
You need to login to perform this action.
You will be redirected in
3 sec
