Author Question: At 30C, by how much is a reaction's activation energy decreased by the addition of a catalyst if the ... (Read 40 times)

jojoperlo_ · **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

ladan86 · **Reply #1 on:** Nov 5, 2023

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