1.

Calculate the average kinetic energy of a hydrogen molecule at 27^@C.

Answer»

SOLUTION :The average KINETIC ENERGY of a SINGLE molecule is given by
`E_x = 3/2 KT`
`:.`Average kinetic energy of a hydrogen molecule at
at `27^@(300 K)`
`=3/2xx1.3807 x 10^(-23) xx 300`
( `:. k = 1.3807 xx 10^(-23) JK^(-1))`
= `6.231 xx 10^(-21) J`


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