At what temperature will the R.M.S. velo...

At what temperature will the R.M.S. velocity for `H_2` molecule-be same as that for `O_2` molecule at 127° C?

A

`77^(@)C`

B

`-248^(@)C`

C

`-127^(@)C`

D

`35^(@)C`

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The correct Answer is:

B

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