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Chemistry help Problem 5.91

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At 20 ∘C (approximately room temperature) the average velocity of N2 molecules in air is 1050 mph. What is the average speed in m/s? (answer 469.4) What is the kinetic energy (in J) of an N2 molecule moving at this speed? (answer 5.124×10^−21) The one I need help on: What is the total kinetic energy of 1 mol of N2 molecules moving at this speed? (I already tried K = -3.1⋅103 -3.086⋅103)



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