At a particular temperature and volume, two gases, A (red) and B (blue), react. The
following molecular scenes represent starting mixtures for four experiments:Expt no.: 1 2 3 4
Initial rate (mol/Ls): 0.000050 0.00010 0.00020 ?(a) What is the reaction order with respect to A, B and the overall order?
(b) Write the rate law for the reaction.
(c) Predict the initial rate of Expt 4.
At a particular temperature and volume, two gases, A (red) and B (blue), react. The
following molecular scenes represent starting mixtures for four experiments:Expt no.: 1 2 3 4
Initial rate (mol/Ls): 0.000050 0.00010 0.00020 ?(a) What is the reaction order with respect to A, B and the overall order?
(b) Write the rate law for the reaction.
(c) Predict the initial rate of Expt 4.
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Related questions
The reaction of tert-butyl-bromide (CH3)3CBr with water is represented by the equation:
(CH3)3CBr + H2O â (CH3)3COH + HBr
The following data were obtained from three experiments using the method of initial rates:
| Initial [(CH3)3CBr] mol L-1 | Initial [H2O] mol L-1 | Initial rate mol L-1 min-1 | |
| Experiment 1 | 5.0 x 10^-2 | 2.0 x 10^-2 | 2.0 x 10-6 |
| Experiment 2 | 5.0 x 10-2 | 4.0 x 10-2 | 2.0 x 10-6 |
| Experiment 3 | 1.0 x 10-1 | 4.0 x 10-2 | 4.0 x 10-6 |
a. What is the order with respect to (CH3)3CBr?
b. What is the order with respect to H2O?
c. What is the overall order of the reaction?
d. Write the rate equation.
e. Calculate the rate constant k for the reaction
Consider the following general reaction and data:
| Experiment |
Initial [A] (mol/L) |
Initial [B] (mol/L) |
Initial [C] (mol/L) |
Initial Rate (mol/L-s) |
| 1 | 0.024 | 0.085 | 0.032 | 6 x 10^-6 |
| 2 | 0.096 | 0.085 | 0.032 | 9.6 x 10^-5 |
| 3 | 0.024 | 0.034 | 0.080 | 1.5 x 10^-5 |
| 4 | 0.012 | 0.170 | 0.032 | 1.5 x 10^-6 |
(a) What is the reaction order with respect to each reactant?
(b) Calculate the rate constant.
(c) Write the rate law for this reaction.
(d) Express the rate in terms of changes in concentration with time for each of the components.
