1. The energy needed to form an activated complex is called a. collision energy

Question

1. The energy needed to form an activated complex is called a. collision energy d. activation energy b. kinetie energy e. potential energy 2. A proposed mechanism for the decomposition of ozone in the stratosphere is: Step 1: Cl(x) +00g) ciog) +0i(x) Step 2: CIO g) + Odg) Clog) + 2 Orlg) What is the molecularity of step 2? a. unimolecular b. bimolecular c. termolecular d. e. zero molecular (spontaneous) More information is needed to answer this question. . The mechanism for the first-order reaction 2 HOdaq) 2 H20() + 02 in the presence of I-(aq) is proposed to Step 1: H2O2(aq) + raq) H2O() + Oldaq) Step 2: H2O2(ag) + OI(aq) H20(1) + Otg) + raq) slow) (fast) Identify the catalyst in the reaction. a. H2O c. I

Explanation / Answer

Ans 1 : d) Activation energy

Activation energy is the minimum amount of energy that is required to form the activated complex which leads to the formation of products in the reaction.

These activated complexes are unstable and short lived , which are also referred to as transition state in the reaction.

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