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## Homework Statement

What is the total translational kinetic energy of the gas molecules of 0.450 mol of air at atmospheric pressure that occupies a volume of 5.00 L (0.00500 m3)?

## Homework Equations

P=2/3(N/V)<Ktr>

N= 0.450 mol

V= 5.00L

Want to find Ktr

## The Attempt at a Solution

The problem is I don't know the pressure to use this formula or how to figure out what it is from the given information, if that's possible.