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At what temperature the kinetic energy o...

At what temperature the kinetic energy of a molecule will be equal to `2.8 xx 10^(-20) J`? Boltzmann constant `(k_(B)) = 1.4 xx 10^(-23) J "molecule"^(-1)K^(-1)`

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The correct Answer is:
`1.33 xx 10^(3) K`
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