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Estimate the average thermal energy of a...

Estimate the average thermal energy of a helium atom at (i) room temperature `(27^(@)C)`. Boltzmann constant `=1.38 xx 10^(-23) JK^(-1)`

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The correct Answer is:
` 6.21 xx 10^(-21) J`
Average thermal energy of a helium atom
`=1/2 mC^(2) = 3/2 kT = 3/2 xx 1.38 xx 10^(-23) xx 300`
` = 6.21 xx 10^(-21) J`
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