JEE Mains · Physics · STD 11 - 12 . kinetic theory of gases
A flask contains Hydrogen and Argon in the ratio \(2: 1\) by mass. The temperature of the mixture is \(30^{\circ} C\). The ratio of average kinetic energy per molecule of the two gases ( \(K\) argon/ \(K\) hydrogen) is: (Given: Atomic Weight of \(Ar = 39.9\))
- A \(1\)
- B \(2\)
- C \(\frac{39.9}{2}\)
- D \(39.9\)
Answer & Solution
Correct Answer
(A) \(1\)
Step-by-step Solution
Detailed explanation
Average \(KE\) per molecule \(=\frac{3}{2} kT\) \(\frac{ K _{ AS }}{ K _{ H }}=\frac{1}{1}\)
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