(a)[1]
Describe how nitrogen monoxide is made in a car engine.
(b(i))[2]
Explain why the reaction $2\text{CO} + 2\text{NO} \rightarrow 2\text{CO}_2 + \text{N}_2$ includes both oxidation and reduction.
(b(ii))[2]
Explain, using ideas about bond breaking and bond forming, why the reaction is exothermic.
(b(iii))[2]
Explain, using ideas about particles, why increasing the temperature increases the rate of the reaction.
(b(iv))[1]
Explain why a catalyst increases the rate of the reaction between carbon monoxide and nitrogen monoxide.
(b(v))[2]
Explain, using ideas about particles, why the catalyst in a catalytic converter must have a large surface area.