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Question
A flask contains argon and oxygen in the ratio of 3 : 2 in mass and the mixture is kept at 27°C. The ratio of their average kinetic energy per molecule respectively will be ______.
Options
3 : 2
9 : 4
2 : 3
3 : 5
MCQ
Fill in the Blanks
Solution
A flask contains argon and oxygen in the ratio of 3 : 2 in mass and the mixture is kept at 27°C. The ratio of their average kinetic energy per molecule respectively will be 3 : 5.
Explanation:
Average kinetic energy per molecule
= `"f"/2`KT
`("Av"."K"."E"_"Ar")/("Av"."K"."E"_("O"_2)) = (3/2"KT")/(5/2"KT")`
= `3/5`
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