Azomethane decomposes with first order kinetics according to the equation
The following data were obtained for the decomposition in a 200 ml flask at .
| Time (t) in minutes | 0 | 15 | 30 | 48 | 95 |
|---|---|---|---|---|---|
| Total Pressure (torr) | 36.2 | 42.4 | 46.5 | 53.1 | 59.3 |
Calculate the rate constant and the half-life for this reaction.
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a) How many molecules of oxygen are present in 0.0032 kg of the gas?
b) Calculate the temperature at which the root mean square velocity, the average velocity and the most probable velocity of the oxygen gas are all equal to .
Calculate the activation energy of a reaction whose rate constant is tripled by a rise in temperature in the vicinity of
.
What is the general pattern of electronic configuration of the lanthanoids? Give the three exceptions to this.
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