Question Solved1 Answer just last question! One pathway for the destruction of ozone in the upper atmosphere is O3(g) + NO(g) -> NO2(g) + O2(g) Slow NO2(g) + O(g) -> NO(g) + O2(g) Fast Overall reaction: O3(g) + O(g) -> 2O2(g) Identify the correct term to describe each of the following species. Catalyst: nitrogen monoxide Product: molecular (di)oxygen Intermediate: NO2(g) Reactant: O3(g) Reactant: O(g) 1 pts You are correct. Previous Tries Ea is 14.0 kJ/mol, for the uncatalyzed reaction: O3(g) + O(g) -> 2O2(g) Ea for the same reaction, when catalyzed as above, is 11.9 kJ/mol. At -44°C, what is the ratio of the rate constant for the catalyzed reaction to that for the uncatalyzed reaction? (Assume the frequency factor A is the same for each reaction.) ans:3.01 One of the concerns about the use of freons is that they will migrate to the upper atmosphere, where chlorine atoms can be generated by the reaction CCl2F2 -> CF2Cl + Cl (photolysis of Freon-12) Chlorine atoms can also act as a catalyst for the destruction of ozone. The activation energy for the reaction Cl + O3 -> ClO + O2 is 2.1 kJ/mol. Cl is regenerated by the fast reaction ClO + O -> O2 + Cl If the frequency factors are the same and both catalysts are in equal concentration, how many times faster, at -52°C, does the Cl catalysed reaction proceed compared to the reaction catalysed as described in the previous question.

MQXWOH The Asker · Chemistry

just last question!
One pathway for the destruction of ozone in the upper atmosphere is

O3(g) + NO(g) -> NO2(g) + O2(g) Slow
NO2(g) + O(g) -> NO(g) + O2(g) Fast
Overall reaction: O3(g) + O(g) -> 2O2(g)

Identify the correct term to describe each of the following species.
Catalyst: nitrogen monoxide
Product: molecular (di)oxygen
Intermediate: NO2(g)
Reactant: O3(g)
Reactant: O(g)

1 pts

You are correct. Previous Tries

Ea is 14.0 kJ/mol, for the uncatalyzed reaction:

O3(g) + O(g) -> 2O2(g)

Ea for the same reaction, when catalyzed as above, is 11.9 kJ/mol.
At -44°C, what is the ratio of the rate constant for the catalyzed reaction to that for the uncatalyzed reaction?
(Assume the frequency factor A is the same for each reaction.)
ans:3.01
One of the concerns about the use of freons is that they will migrate to the upper atmosphere, where chlorine atoms can be generated by the reaction

CCl2F2 -> CF2Cl + Cl (photolysis of Freon-12)

Chlorine atoms can also act as a catalyst for the destruction of ozone.
The activation energy for the reaction

Cl + O3 -> ClO + O2

is 2.1 kJ/mol.

Cl is regenerated by the fast reaction

ClO + O -> O2 + Cl

If the frequency factors are the same and both catalysts are in equal concentration, how many times faster, at -52°C, does the Cl catalysed reaction proceed compared to the reaction catalysed as described in the previous question.

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{:[K=Ae^(-Ea//RT)],[" If "E_(a)=14kJ∣mol],[k_(1)=Ae^(-14//RT)],[1fE_(a)=11*gkJ∣mol],[k_(2)=A(-11.9)/(RT)],[:.(K_(2))/(K_(1))=(Ae^(-(11.9)/(RT)))/(Atheta^(-14//RT))],[=3.01]:}2nd partReac ... See the full answer