Two flask A and B of equal volumes main...

Two flask A and B of equal volumes maintained at temperature `300K` and `700K` contain equal mass of `He(g)` and `N_(2)(g)` respectively. What is the ratio of total translational kinetic energy of gas in flask A to that of flask B ?

unity

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The correct Answer is:

`K.E.=3/2nRT,K.E(H_(2))=3/2xxw/2xxRxx300`
`K.E.(CH_(4))=3/2xxw/16xxRxx600`
Hence `(K.E.(H_(2)))/(K.E.(CH_(4)))=4`

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