For a zero-order reaction $A o P$, the integrated rate law is $[A]_t…

Question

For a zero-order reaction $A 	o P$, the integrated rate law is $[A]_t = [A]_0 - kt$. If initial $[A]_0 = 1.0$ M and after 200 s, $[A] = 0.6$ M, then $k$ equals:

Accepted Answer

C. $2 	imes 10^{-3}$ M s⁻¹

$k = ([A]_0 - [A]_t)/t = (1.0 - 0.6)/200 = 0.4/200 = 2	imes10^{-3}$ M s⁻¹. Units of M s⁻¹ confirm zero order.

Answer

$0.4$ M⁻¹ s⁻¹

Answer

$2 	imes 10^{-4}$ M s⁻¹

Answer

$5 	imes 10^{-3}$ s⁻¹

For a zero-order reaction $A \to P$, the integrated rate law is $[A]_t = [A]_0 - kt$. If initial $[A]_0 = 1.0$ M and after 200 s, $[A] = 0.6$ M, then $k$ equals: