1.

If \[{{V}_{H}},\,\,{{V}_{N}}\] and \[{{V}_{O}}\] denote the root-mean square velocities of molecules of hydrogen, nitrogen and oxygen respectively at a given temperature, then

A. \[{{V}_{N}}>{{V}_{O}}>{{V}_{H}}\]
B. \[{{V}_{H}}>{{V}_{N}}>{{V}_{O}}\]
C. \[{{V}_{O}}={{V}_{N}}={{V}_{H}}\]
D. \[{{V}_{O}}>{{V}_{H}}>{{V}_{N}}\]
Answer» C. \[{{V}_{O}}={{V}_{N}}={{V}_{H}}\]


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