1.

The molecular velocities of two gases at same temperature are u_(1) and u_(2) and their masses are m_(1) and m_(2) respectively. Which of the following expressions is correct ?

Answer»

`( m_(1))/( u_(1)^(2)) = ( m_(2))/( u_(2)^(2))`
`m_(1)u_(1) = m_(2) u_(2)`
`( m_(1))/( u_(1)^(2)) = ( m_(2))/( u_(2)^(2))`
`m_(1) u_(1)^(2) = m_(2) u_(2)^(2)`

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