Chapter 12: Q32 E (page 705)
Describe how graphical methods can be used to determine the order of a reaction and its rate constant from a series of data that includes the concentration of A at varying times.
The method of graphical determination is described below.
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Ingeneral, can we predict the effect of doubling the concentration of A on the rate of the overall reaction A + B⟶C? Can we predict the effect if the reaction is known to be an elementary reaction?
Graph the following data to determine whether the reaction A⟶B + C is first order.
Trial | Time(s) | (A) |
1 | 4.0 | 0.220 |
2 | 8.0 | 0.144 |
3 | 12.0 | 0.110 |
4 | 16.0 | 0.088 |
5 | 20.0 | 0.074 |
Under certain conditions, the decomposition of ammonia on a metal surface gives the following data:
Determine the rate law, the rate constant, and the overall order for this reaction.
A study of the rate of dimerization of \({{\bf{C}}_{\bf{4}}}{{\bf{H}}_{\bf{6}}}\) gave the data shown in:
\({\bf{2}}{{\bf{C}}_{\bf{4}}}{{\bf{H}}_{\bf{6}}} \to {{\bf{C}}_{\bf{8}}}{{\bf{H}}_{{\bf{12}}}}\)
(c) Determine the average rate of formation of \({{\bf{C}}_{\bf{8}}}{{\bf{H}}_{{\bf{12}}}}\) at 1600 s and the instantaneous rate of formation at 3200 s from the rates found in parts (a) and (b).
If the initial concentration of butadiene is 0.0200 M, what is the concentration remaining after 20.0 min?
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