Question

Calculate the root-mean-square velocity of oxygen molecules at room temperature, 25 oC. Given that molar mass of oxygen and molar gas constant are 31.9998 g/mol and 8.3143 J/mol K, respectively in meter per second

Answer 1

`\upsilon_(rms)=\sqrt{(3RT)/(M)}`

Remember,

T must be in the kelvin scale.

`\begin{gathered} \upsilon_(rms)=\sqrt{(3*8.314*298)/((31.9998)/(1000))} \\ \\ v_(rms)=481.94 \end{gathered}`