Question

Average $KE$ of $C{O}_2$ at ${27}^{\circ }C$ is $E$. The average kinetic energy of $N_2$ at the same temperature will be :

• A. $E$
• B. $22E$
• C. $E/22$
• D. $E/\sqrt{2}$

Answer 1

The correct option is A $E$

Kinetic energy is the energy possessed by an object by virtue of its motion.

Average $KE$ of $C{O}_2$ at ${27}^{\circ }C$ is $E$. The average kinetic energy of $N_2$ at the same temperature will be $E$

Kinetic energy of 1 mole of gas is $\frac{3}{2}RT$.

Thus, the average kinetic energy of 1 mole of any gas is directly proportional to its absolute temperature and independent of its molar mass.

So, the correct option is $A$