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Calculate the total and average kinetic energy of `32 g` methane molecules at `27^(@)C (R =8.314 JK^(-1) mol^(-1))` .

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Toatl `KE=3/2 nRT(n=32/16=2 mol)`
`=3/2xx2xx8.314xx300=7482.6 J`
Average `KE=3/2 KT=3/2xxR/NxxT`
`(K= "Boltzmann constant" =1.38xx10^(-23))`
`=3/2xx8.314/(6.02xx10^(23))xx300 J`
`=621.47xx10^(-23) J`
`=6.21xx10^(-21)J`
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