Question

If the average kinetic energy of a molecule of a hydrogen gas at $300$K is E, then the average kinetic energy of a molecule of a nitrogen gas at the same temperature is:

• A. $7$E
• B. $E/14$
• C. $14$E
• D. $E/7$
• E. E

Answer 1

Answer: (E)

E

We know that,
Kinetic energy $\propto$ $T$
In the question, temperature is same in both conditions. So, the kinetic energy in the second condition is E.