A proposed mechanism for a reaction is:

(i) A + B2 AB2 Ea1 = 12 kJ/mol ƒ´H1 = 3 kJ/mol
(ii) AB2 + C2 ABC + BC Ea2 = 30 kJ/mol ƒ´H2 = 5.2 kJ/mol
(iii) ABC + B2 AB2 + BC Ea3 = 10 kJ/mol ƒ´H3 = -7.8
kJ/mol

a) Which is the rate determining step? Explain why.

(ii) is the rate determining step because it requires the greatest increase in energy, and thus, it is the slowest step.

b) What is the overall equation for this reaction?

A + 2B2 + c2 = AB2 + 2BC delta h= 0.4 kj/mol

c) Name a reaction intermediate (1 mark)

ABC

d) Draw a completely labeled energy diagram to scale for the overall reaction. Clearly show ƒ´Hr
and Ea

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HELP AND PLEASE CHECK MY WORK