Computers and Technology, 12.01.2021 17:40 tori3981

Step 1: H2(g) + ICI(9) HI(g) + HCl(9) (slow) Step 2: HI(g) +ICI(g) + HCl(9) + 12 (9) (fast)
The reaction is carried out at constant temperature inside a rigid container. Based on this mechanism, which of the following is the most likely reason for the different rates of step 1 and step 2 ?
(A) The only factor determining the rate of step 2 is the orientation of the HI and ICl polar molecules during a collision, but it has a negligible effect when H, and ICl molecules collide.
(B) The amount of energy required for a successful collision between H, and ICl is greater than the amount of energy required for a successful collision between HI and ICI.
(C) The fraction of molecules with enough energy to overcome the activation energy barrier is lower for HI and ICl than for H, and ICI.
(D) The frequency of collisions between H, and ICl is greater than the frequency of collisions between HI and ICI.

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Step 1: H2(g) + ICI(9) HI(g) + HCl(9) (slow) Step 2: HI(g) +ICI(g) + HCl(9) + 12 (9) (fast)
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