Question

15) A particular first-order reaction has a rate constant of 1.35 × 10^2 s^-1 at 25.0°C. What is the magnitude of k at 75.0°C if Ea = 85.6 kJ/mol? 16) A reaction is found to have an activation energy of 108 kJ/mol. If the rate constant for this reaction is 4.60 × 10^-6 s^-1 at -1.85 ºC, what is the rate constant at 90.85 ºC?

Name: 15 a particular first order reaction has a rate constant of 135 102 s 1 at 250c what is the magnitude of k at 750c if ea 856 kjmol 16 a reaction is found to have an activation energy of 108 90943
Uploaded: 2022-06-30T16:09:52-08:00
Duration: 2 min 23 s
Channel: Suman K
Description: 15 a particular first order reaction has a rate constant of 135 102 s 1 at 250c what is the magnitude of k at 750c if ea 856 kjmol 16 a reaction is found to have an activation energy of 108 90943

          15) A particular first-order reaction has a rate constant of 1.35 × 10^2 s^-1 at 25.0°C. What is the magnitude of k at 75.0°C if Ea = 85.6 kJ/mol?
16) A reaction is found to have an activation energy of 108 kJ/mol. If the rate constant for this reaction is 4.60 × 10^-6 s^-1 at -1.85 ºC, what is the rate constant at 90.85 ºC?

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Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

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Solved by Expert Suman K

06/30/2022

Step 1

0°C using the Arrhenius equation: Given: - Rate constant at 25.0°C (k1) = 1.35 × 10^2 s^-1 - Activation energy (Ea) = 85.6 kJ/mol - Gas constant (R) = 8.314 J/(mol·K) - Temperature at 25.0°C (T1) = 25°C + 273 = 298 K - Temperature at 75.0°C (T2) = 75°C + 273 = 348 Show more…

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15) A particular first-order reaction has a rate constant of 1.35 × 10^2 s^-1 at 25.0°C. What is the magnitude of k at 75.0°C if Ea = 85.6 kJ/mol? 16) A reaction is found to have an activation energy of 108 kJ/mol. If the rate constant for this reaction is 4.60 × 10^-6 s^-1 at -1.85 ºC, what is the rate constant at 90.85 ºC?