Question

A gas mixture consists of molecules of type 1, 2 and 3, with molar masses $m_{1}\ \textgreater \ m_{2}\ \textgreater \ m_{3}.\ v_{rms}\ and\ \bar{k}$ are the r.m.s. speed and average kinetic energy of the gases. Which of thefollowing is true?(a) $(v_{rms})_{1}\ \textless \ (v_{rms})_{2}\ \textless \ (v_{rms})_{3}\ and\ (\bar{k})_{1}=(\bar{k})_{2}=(\bar{k})_{3}$(b) $(v_{rms})_{1}=(v_{rms})_{2}=(v_{rms})_{3}\ and\ (\bar{k})_{1}=(\bar{k})_{2}\ \textgreater \ (\bar{k})_{3}$(c) $(v_{rms})_{1}\ \textgreater \ (v_{rms})_{2}\ \textgreater \ (v_{rms})_{3}\ and\ (\bar{k})_{1}\ \textless \ (\bar{k})_{2}\ \textgreater \ (\bar{k})_{3}$(d) $(v_{rms})_{1}\ \textless \ (v_{rms})_{2}\ \textless \ (v_{rms})_{3}\ and\ (\bar{k})_{1}\ \textless \ (\bar{k})_{2}\ \textless \ (\bar{k})_{3}$

Answer 1

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