The reaction has an activation energy (Ea) of 410 kJ/mol and the reverse reactio

Question

The reaction has an activation energy (Ea) of 410 kJ/mol and the reverse reaction has an activation energy of 260 kJ/mol. Estimate the AHan (kJ/mol) for the above reaction. AHnS0 kJ/mol 2 44 1C 13) will the presence of a catalyst affect the equilibrium constant (Kou)? Yes or No (2 pts) 14a-b) 40.0 grams of NOCI (MW- 65.46 g/mol) were placed in a 1.5L reaction container at 350°0c After equilibrium was established, 11.5 grams of NOCI remained. (8 pts) (NO Mw = 30 g mol; Cla Mw-70.9 gmol) a) Calculate K, for the reaction at equilibrium. b) What is the partial pressure of Cla(g) in the container at equilibrium. 15) Label the reaction diagram shown below with the proper terms (i e. reactancts, interm transition state, etc.) HF Reochon B b-products =AE Encray

Explanation / Answer

15) In multistep mechanisms, one or more intermediates may be involved. An intermediate is a species formed in one elementary reaction and consumed in the next elementary reaction. In the above shown energy profile diagram, A represents the energy of reactants. When supplied with energy equal to E (i.e. Activation Energy), the transition state B is reached, which then forms the intermediate C. Then again a transition state B is reached which then forms the products D. As the energy of products D is more than the energy of reactants A, so F represents the overall energy absorbed in the reaction i.e. Enthalpy of reaction.

So

A= Reactants

B=Transition state

C=Intermediate

D=Products

E=Activation energy

F=Enthalpy of reaction

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