Gaseous StateHard
Question
The kinetic energy of N molecules of O2 is x joule at - 123oC. Another sample of O2 at 27oC has a kinetic energy of 2 x. The latter sample contains ____ molecules of O2.
Options
A.N
B.N/2
C.2N
D.3N
Solution
K.EO2 =
⇒ K.EO2 = 
Therefore, (A) option is correct.
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