Question

What is the average translational kinetic energy of nitrogen molecules at 1600 K? A. 1.31x10-20 J. B. 2.31x10-20 J. C. 3.31x10-20 J. D. 4.31x10-20 J. ​

Answer 1

KE

• 5/2KT

For nitrogen n=5

So

• 5/2(1.38×10^{-23})(1600)
• 5500×10^{-23}
• 5.5×10^{-20}J