A mixture of the ideal diatomic gases x & y is enclosed in a container at constant temperature. The
molecular weight of x is 16 times that of y. Then:

Question

A mixture of the ideal diatomic gases x & y is enclosed in a container at constant temperature. The molecular weight of x is 16 times that of y. Then:

TestHub · Accepted Answer

The average molecular kinetic energy depends only on temperature, so it's the same for both gases. The root mean square speed v r m s ​ = M 3 RT ​ ​ . Since M x ​ = 16 M y ​ , v r m s , x ​ = 16 M y ​ 3 RT ​ ​ = 4 1 ​ M y ​ 3 RT ​ ​ = 4 1 ​ v r m s , y ​ .

Physics - Heat & Thermo Question with Solution | TestHub

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