What is kinetic energy of 1 gm of O(2) a...

What is kinetic energy of 1 gm of `O_(2)` at `47^(@)C` ?

A

`1.24 xx 10^2 J`

B

`2.24 xx 10^2 J`

C

`1.24 xx 10^3J`

D

`3.24 xx 10^2J`

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The correct Answer is:

A

`K.E = 3/2 nRT = 3/2 xx 1/32 xx 8.314 xx 320 J`
`= 1.24 xx 10^2J`

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