## Chemistry and Chemical Reactivity (9th Edition)

a,b) At constant [NO2], doubling [F2] doubles the rate, so the reaction is of first-order with respect to F2. At constant [F2], doubling [NO2] doubles the rate, so the reaction is of first-order with respect to NO2. $r=k[F_2][NO_2]$ c) For the first line: $2.0\dot{}10^{-4}\ M/s=k\dot{}0.001\ M\dot{}0.005\ M$ $k=40\ L/mol.s$