The reaction 2 HI(g) → H2(g) + 2(g) has rate constants of 8.5 x 10-9 M-1 s¹ at 500 K and 1.1 x 10-6 M-1 s1 at 800 K. What is the activation energy for the reaction in kJ/mol to 2 significant figures? -23 kJ/mol 23 kJ/mol 54 kJ/mol none of the answers are correct

Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter11: Chemical Kinetics
Section: Chapter Questions
Problem 11.59PAE: Can a reaction mechanism ever be proven correct? Can it be proven incorrect?
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The reaction
2 HI(g) → H2(g) + 2(g)
has rate constants of 8.5 x 10-⁹ M-¹ s¹ at 500 K and 1.1 x 10-6 M-1 5-¹ at 800 K. What is the
-1
activation energy for the reaction in kJ/mol to 2 significant figures?
-23 kJ/mol
23 kJ/mol
54 kJ/mol
none of the answers are correct
Transcribed Image Text:The reaction 2 HI(g) → H2(g) + 2(g) has rate constants of 8.5 x 10-⁹ M-¹ s¹ at 500 K and 1.1 x 10-6 M-1 5-¹ at 800 K. What is the -1 activation energy for the reaction in kJ/mol to 2 significant figures? -23 kJ/mol 23 kJ/mol 54 kJ/mol none of the answers are correct
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