The molecular velocities of two gases at same temperature are `u_(1)` and `u_(2)`, their masses are `m_(1)` and `m_(2)` respectively, which of the following expression is correct ?

Options

A. `(m_1)/(u_1^2)= (m_2)/(u^2)`
B. `m_(1)u_(1) = m_(2) u_(2)`
C. `(m_1)/(u_1) = (m_2)/(u_2)`
D. `m_(1)u_(1)^(2) = m_(2) u_(2)^(2)`