Question 342: Thermodynamics & KTG

Question

A flask contains argon and oxygen in the ratio of 3 : 2 in mass and the mixture is kept at 27$$^\circ$$C. The ratio of their average kinetic energy per molecule respectively will be :

Accepted Answer

$$K{E_{avg}} = {3 \over 2}kT$$ (At lower temperature)
As temperature is same for both the gases.
$$\Rightarrow$$ Both gases will have same average kinetic energy.
$$ \Rightarrow {{{{(K{E_{avg}})}_{\arg on}}} \over {{{(K{E_{avg}})}_{oxygen}}}} = {1 \over 1}$$

Answer

3 : 2

Answer

9 : 4

Answer

2 : 3

Answer

1 : 1

Thermodynamics & KTG

A flask contains argon and oxygen in the ratio of 3 : 2 in mass and the mixture is kept at 27$^\circ$C. The ratio of their average kinetic energy per molecule respectively will be :

Choose the correct answer: