At what temperature is rms velocity of hydrogen molecule equal to that of an oxygen molecule at 47^@C

At what temperature is rms velocity of hydrogen molecule equal to that

1.	At what temperature is rms velocity of hydrogen molecule equal to that of an oxygen molecule at 47^@C
Answer» SOLUTION :`v_(RMS)=SQRT((3RT)/(M))` Now, `{:("rms velocity of "),(H_2"molecule"):}}={:{("rms velocity of "),(O_2"molecule"):}` (or) `sqrt((3RxxT)/(2))=sqrt((3Rxx(47+273))/32)` (or) TEMPERATURE `T = (2xx320)/32=20K`