Calculate the Average Kinetic Energy of an N₂ Molecule with a Root-Mean-Square

Calculate the average kinetic energy of an N₂ molecule with a root-mean-square speed of 536 m/s. (1 J = 1 kg . m²/s²; 1 mol = 6.02 $\times$ 10²³)

A) 1.33 $\times$ 10^-20 J
B) 6.68 $\times$ 10^-21 J
C) 1.25 $\times$ 10^-23 J
D) 2.49 $\times$ 10^-23 J
E) 2.67 $\times$ 10^-20 J