The gas phase decompositiön of NOBr is second order in [NOBr), with k=0.810 M"s at l0C We start with 4.00x 10'M NOBr in a flask at 10°C. How many seconds does it take to use up 1.300 x10 MNOBr? 2NOBr (g)2NO(g)+ Br,(g) Rate-k[NOBr (a) 92.6s (b) 9.26 s (c) 926 s (d) 0.926 s