At what temperature the RMS velocity of \[SO_{2} \] be same as that of \[O_{2} \] at 303 K ?
a) 273 K
b) 606 K
c) 303 K
d) 403 K
Answer: b
Explanation: Apply \[\frac{U_{1}}{U_{2}} = \sqrt{\frac{T_{1}M_{2}}{T_{2}M_{1}}} \]
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