1.

The total kinetic energy of a sample of gas which contians N molecules at -123^(@)C has E_(K) joules. Another sample of gas at 27^(@)C has totla kinetic energy of 2 E_(K) joules. The number of molecules in the second sample of gas is :

Answer»

`N//2`
`2N`
N
`N^(2)`

ANSWER :C


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