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In what gas at the same temperature is t...

In what gas at the same temperature is the speed `v` of sound greater - in nitrogen `(N_(2))` or in carbon dioxide `(CO_(2))`? The vibrational modes of gas molecules are not excited. Campare the velocities when vibrational modes are also excited.

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The correct Answer is:
1.28 times greater in `N_(2)`: 1.29 times greater
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