A flask contains Hydrogen and Argon in the ratio 2:1 by mass. The… | JEE Main 2023 Physics PYQ

MCQEasyJEE Main 2023 · 15 April, Shift 1Pressure & Temperature Relation

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
$\dfrac{39.9}{2}$
B
$1$
C
$39.9$
D
$2$

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