(adsbygoogle = window.adsbygoogle || []).push({}); Gas Law problem.... please help

Calculate the average kinetic energies of the CH4 and N2 molecules at 294 K and 574 K.

I've tried every possible way I could think of. I can't get the right answer. I don't know what equation to use anymore, I've done it all and nothing works.

I got all these answers:

676

4.06e-21

4333.34

J/molecule3 sig figs

And none of them are good. I'm getting annoyied, someone give me a hint please. Thanks

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# Gas Law problem please help

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