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) It requires the greatest increase in energy, and thus, is the slowest.

b) What is the overall equation for this reaction?

A + 2B2 + C2 = AB2 +2BC deltaH= 0.4 kj/mol

c) Name a reaction intermediate.

ABC

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

?????

Please help!! Please check my work and help with d)