Question:
A gas mixture consists of molecules of tyres A, B, and C with masses mA > mB > mC. Rank the three types of molecules in decreasing order of
(a) average KE
(b) rms speeds
Solution:
(a) Pressure and temperature are the same, therefore,
KEc > KEb > KEa
(b) When P and T are constant, (Vrms)c > (Vrms)b > (Vrms)a
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