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Average kinetic energy, in Joules of the...

Average kinetic energy, in Joules of the molecules in 8.0 g of methane at 27°C.

A

`3.1 xx 10^(-22)` J

B

`12.4 xx 10^(-20)` J

C

`6.21 xx 10^(-21)` J

D

`1.24 xx 10^(-22)` J

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