Which of the following expressions correctly represents the relationship between the average molar kinetic energies `(KE)` of `CO` and `N_(2)` molecules at the same temperature?

Options

A. `bar(KE)_(CO)ltbar(KE)_(N_(2))`
B. `bar(KE)_(CO)gtbar(KE)_(N_(2))`
C. `bar(KE)_(CO)=bar(KE)_(N_(2))`
D. Cannot be predicted unless volumes of the gases are given

Answer

C

Explanation

`KE=(3)/(2)RT` (for one mole of a gas)
The temperature is constant and kinetic energy is independent on molecular weights. So,
`bar(KE)_(CO)=bar(KE)_(N_(2))`