Determine the overall order of the reaction: H₂(g)+ 2 ICl(g)$\to$ I₂(g)+ 2 HCl(g)from the following data:

Question

Quizplus · Accepted Answer

To determine the overall order of the reaction, we need to examine how the rate varies with the concentration of each reactant. From the given data, we can see that the rate changes significantly with the concentration of [H₂] (from 34 torr/s to 0.266 torr/s) while the concentration of ICl and HCl remain constant in each experiment. Moreover, when we double the concentration of H₂, the rate increases by a factor of ≈ 4, indicating that the rate is proportional to [H₂]². This suggests that the reaction is second order with respect to [H₂]. Therefore, the overall order of the reaction is 2 + 1 + 1 = 4, which is consistent with a fourth-order reaction. However, since we are only asked to identify the order with respect to one reactant, the answer is B) second.

Determine the Overall Order of the Reaction: H2(g)+ 2 ICl(g) →\to→

Determine the Overall Order of the Reaction: H₂(g)+ 2 ICl(g) $\to$