試題詳解

11. The kinetics of the reaction A + 3B→ C + 2D were studied and the following results obtained, where the rate law is: -∆[A]/ ∆t = k[A]ⁿ [B]^m. For a run where [A]0= 1.0x10^-3 M and [B]₀= 5.0 M, a plot of ln[A] versus t was found to give a straight line with slope = -5.0x10^-2 s ^-1 . For a run where [A]0= 1.0x10^-3 M and [B]₀= 10.0 M, a plot of ln[A] versus t was found to give a straight line with slope = -7.1x10^-2 s ^-1 . Calculate the value of k (ignore units).
(A)11
(B)10
(C)50
(D)1.1
(E)22