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Which of the following molecule has the lowest average speed at 273K? A) CO B) CH4 C) CO2 D) C2H6

Which of the following molecule has the lowest average speed at 273K? 
A) CO
B) CH4
C) CO2
D) C2H6

Grade:12

1 Answers

Indranil Dutta
13 Points
5 years ago
vAvg =√(8RT/πM)
So vavg is inversely proportional to molecular weight of the atom. As CO2 has the highest molecular weight it will have lowest average speed.

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