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Author Question: At 30C, by how much is a reaction's activation energy decreased by the addition of a catalyst if the ... (Read 9 times)

jojoperlo_

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on: Nov 5, 2023

Question 1

At 25°C, the second-order reaction NOCl(g) → NO(g) + 1/2Cl2(g)is 50% complete after 5.82 hours when the initial concentration of NOCl is 4.46 mol/L.  How long will it take for the reaction to be 75% complete?
◦ 8.22 hr
◦ 11.6 hr
◦ 15.5 hr
◦ 17.5 hr
◦ 23.0 hr

Question 2

At 30°C, by how much is a reaction's activation energy decreased by the addition of a catalyst if the catalyst triples the reaction rate?
◦ 2.77 kJ/mol
◦ 274 J/mol
◦ 2.70 J/mol
◦ 119 J/mol
◦ 1.20 kJ/mol
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
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Marked as best answer by jojoperlo_ on Nov 5, 2023

ladan86

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Reply #1 on: Nov 5, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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jojoperlo_

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Reply 2 on: Nov 5, 2023
:D TYSM

ktidd

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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