- Define the rate of a reaction. What are its units?
- Why does the rate of a reaction not remain constant throughout?
- What is meant by reaction rate? Give its symbolic expression and units for the reaction
- Explain the rate of reaction:
$\ce{2N2O5 -> 4NO2 + O2 ->}$ using
(a) concentration change of $\ce{N2O5}$
(b) concentration change of $\ce{O2}$
- Sketch a labeled potential energy diagram for an endothermic reaction in the presence and in the absence of a catalyst.