A00000233 Dependence of the rate of a chemical reaction
The dependence of the rate of a chemical reaction on temperature
Task 4
1. Write the equation for the dependence of the reaction rate on temperature in differential form.
2. For reaction A, based on the values of the rate constants at temperatures T1, T2 and T3, plot ln k = f (1/T). What equation describes it?
3. Graphically determine the activation energy of reaction A.
4. Analytically determine the activation energy of reaction A.
5. Determine the pre-exponential factor in the Arrhenius equation. Write the Arrhenius equation for reaction A in exponential form.
6. Determine the reaction rate constant A at temperature T.
7. Determine the temperature coefficient of the reaction rate A in the temperature range from T1 to T2.
8. Based on the temperature coefficient of the reaction rate, determine how many times the rate will change if the temperature rises by 25 °C.
Reaction A: 2NO2 = 2NO + O2
No. T1, K k1 T2, K k2 T3, K k3 T, K
18813 1.70∙10−5783 4.64∙10−6700 9.80∙10−9777
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