The reaction C,Hg (g) → 2C,H,(g) has an activation energy of 262 kJ/mol. At 600.0 K, the rate constant, k, is 6.1 × 10-8 s-1. What is the value of the rate constant at 820.0 K? -2.34 k =

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 11.35PAE: 11.35 For the reaction 2 NO(g) + 2 H?(g) — N,(g) + 2 H,O(g) at 1100°C, the following data have been...
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The reaction
C,H (g) → 2 C,H¸(g)
→ 2
has an activation energy of 262 kJ/mol. At 600.0 K, the rate constant, k, is 6.1 × 10-8 s-1. What is the value of the rate constant
at 820.0 K?
-2.34
k
Incorrect
Transcribed Image Text:The reaction C,H (g) → 2 C,H¸(g) → 2 has an activation energy of 262 kJ/mol. At 600.0 K, the rate constant, k, is 6.1 × 10-8 s-1. What is the value of the rate constant at 820.0 K? -2.34 k Incorrect
Expert Solution
Step 1

For the reaction., 

C4H8(g) --------> 2C2H4(g)

Activation energy = 262 KJ/mol

At temperature 600K.,

K1 = 6.1×10-8 s-1

At temperature 820K.,

K2 = ? 

To solve this problem, you need to be familiar with the Arrhenius equation, which is...

k = Ae-Ea/RT

There is also a manipulation of this formula which gives you...

ln k2 = ln k1 - (Ea/R)(1/T2 - 1/T1)

 

 

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