If RMS velocity of CH_4 at 27^@C is 0.2ms^(-1) the RMS velocity at 927

1.	If RMS velocity of CH_4 at 27^@C is 0.2ms^(-1) the RMS velocity at 927^@C
Answer» `4MS^(-1)` `0.8ms^(-1)` `0.4ms^(-1)` `0.6ms^(-1)` ANSWER :C

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