Q. The reaction \( 2 NO ( g )+ Cl _{2}( g ) \rightarrow 2 NOCl ( g ) \) is second order in \( NO \) and first order in \( Cl _{2} \). In a volume of \( 2 dm ^{3}, 5 \) mole of nitric oxide and \( 2 mol \) of \( Cl _{2} \) were brought together, and the initial rate was \( 2.4 \times 10^{-3} \) mole \( dm ^{-3} s ^{-1} \). What will be the rate when half of the chlorine has reacted ?