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Consider the second-order reaction$$\mathrm{NO}(g)+\mathrm{Cl}_{2}(g) \longrightarrow \mathrm{NOCl}(g)+\mathrm{Cl}(g)$$Given that the frequency factor and activation energy for the reaction are $4.0 \times 10^{9} / M \cdot \mathrm{s}$ and $85 \mathrm{kJ} / \mathrm{mol},$ respectively, calculate the rate constant at $500^{\circ} \mathrm{C}$.

$k=7.2 \times 10^{3} ms$

Chemistry 102

Chapter 6

Chemical Kinetics

Kinetics

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In probability theory, the conditional probability of an event A given that another event B has occurred is defined as the probability of A given B, written as P(A|B). It is a function of the probability of B, the probability of A given B, and the probability of B.

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In chemistry, kinetics is the study of the rates of chemical reactions. The rate of a reaction is the change in concentration of a reactant over time. The rate of reaction is dependent on the concentration of the reactants, temperature, and the activation energy of the reaction.

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Consider the first-order r…

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So in this question, they tell us the frequency factor. Physical to four point. Oh, times 10 to 89. Good meter. Second. Right now they toast the activation energy. Is he going to 85 killer jewels, Pramono. And they tell us that the temperature is 500 degrees Celsius. Right, So the first thing that, uh, we need to do is to convert This killed Jules and the Celsius into Jewels and Calvin, respectively. So we know that one killed, you'll is equal to 1000 jewels. Right? So we just want to play this 5000 and we should get activation energy as 8.5 times 10 to the four jewels. And for Celsius, we just gotta add 273. And we should get temperature as 773 Kelvin. And the equation that we need to dio we need to use softer. This question is K is equal chew frequency factor e to the negative activation energy over r T par is the universal gas constant, which is 8.314 jewels per kelvin time Smell. Right. So this is the reason why we need tools and Kelvin in our temperature and activation energy. Now, this question is asking us to calculate a constant right. So we do Que is you? Go to frequency factory, which is 4.9 times 10 to the nine. Your second times it by e to the negative activation energy. So 8.5 times 10 to t four George divided by 8.314 joules. Calvin, slow times that by 773 Kelvin. One thing Plug this holding into the calculator we should get K is you put your 7.2 times 10 to 33 Ah, per With the units for K is ah, most seconds, I believe.

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