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The ratio of the rate of diffusion of a ...

The ratio of the rate of diffusion of a given element to that of helium at the same pressure is 1.4. The molecular weight of the element is

A

32

B

64

C

16

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
`(r_("element"))/(r_(He)) = sqrt((M_(He))/(M_("element")))`
`1/4 = sqrt((4)/(M_("element")))`
`M_("element") = 64`
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