46. Solution to Chemistry Problem

Product description

• Table 9 shows the values ​​of the rate constants at different temperatures for a reaction proceeding in the nth order. For first-order reactions, the reaction rate constant has the dimension s-1, and for second-order reactions, the units of measurement of the constant correspond to cm3/s.mol. Based on the available data, calculate:

a) the activation energy of the reaction;

b) the pre-exponential factor in the Arrhenius equation;

c) the heat of activation of the reaction;

d) the temperature coefficient of the reaction rate;

d) the amount of substance consumed during time τ, if the initial concentrations of the reagents are equal to C0 (kmol/m3)

Table 9

No. Reaction T, K k τ, min C0

188 2NO2→2NO O2

n = 2

350

360

370

380 1.119.10-4

4.130.10-4

1.119.10-3

2.999.10-3 89 3.85

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