Indicate the correct statement for equal volumes of \( \mathrm{N}_{2}(\mathrm{~g}) \) and \( \ma...

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Indicate the correct statement for equal volumes of \( \mathrm{N}_{2}(\mathrm{~g}) \) and \( \mathrm{CO}_{2}(\mathrm{~g}) \) at \( 298 \mathrm{~K} \) and \( 1 \mathrm{~atm} \).
(A) The average translational KE per molecule is the same for \( \mathrm{N}_{2} \) and \( \mathrm{CO}_{2} \)
(B) The rms speed remains constant for both \( \mathrm{N}_{2} \) and \( \mathrm{CO}_{2} \).
(C) The density of \( \mathrm{N}_{2} \) is less than that of \( \mathrm{CO}_{2} \).
(D) The total translational \( \mathrm{KE} \) of both \( \mathrm{N}_{2} \) and \( \mathrm{CO}_{2} \) is the same.
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