There are equal volumes of  $N_{2}andC{O}_2$ gases at 25°C and 1 atm. The indicate the correct

            statements among the following.

The rms velocity remains the same for $N_{2}andC{O}_2$ gases 

The average translational K.E per molecule is the same for $N_{2}andC{O}_2$

The density of ${\text{N}}_2$ is less than that of  ${\text{CO}}_{\text{2}}$

The total translational K.E of both ${\text{N}}_{\text{2}}{\text{\hspace{0.17em}and\hspace{0.17em}CO}}_{\text{2}}$ is the same