Calculate RMS Speed of Nitrogen at 227°C

[Kill.Me.No]

Hiya,

Im having trouble answering this question.


If the density of nitrogen at STP (1.01 X 10^5 Pa and 0 degrees celsius) is 1.25kgm^-3, calculate the RMS speed of nitrogen at 227 degrees celsius.

Could someone please point me in the right direction?

Thank you.
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[hage567]

What have you tried? Can you think of any equations that might be useful?