A box contains `N` molecules of a perfect gas at temperature `T_(1)` and temperature `P_(1)`. The number of molecule in the box is double keeping the total kinetic energy of the gas same as before. If the new pressure is `P_(2)` and temperature `T_(2)`, then

Options

A. `p _(2) =p_(1) , T_(2) =T_(1)`
B. `p _(2) =p_(1), T_(2) =T_(1) //2`
C. `p _(2) =2p_(1), T_(2)=T_(1)`
D. `p _(2) = 2p_(1) , T_(2) =T_(1) //2`