Question

The first order rate constant for a certain reaction increases
from 1.667 × 10⁻⁶ s⁻¹ at 727ºC to 1.667 × 10⁻⁴ s⁻¹ at 1571ºC.
The rate constant at 1150ºC, assuming constancy of
activation energy over the given temperature range is
[Given : log 19.9 = 1.299]
(a) 3.911 × 10⁻⁵ s⁻¹ (b) 1.139 × 10⁻⁵ s⁻¹
(c) 3.318 × 10⁻⁵ s⁻¹ (d) 1.193 × 10⁻⁵ s⁻¹

Answer 1

Explanation:

The first order rate constant for a certain reaction increases

from 1.667 × 10⁻⁶ s⁻¹ at 727ºC to 1.667 × 10⁻⁴ s⁻¹ at 1571ºC.

The rate constant at 1150ºC, assuming constancy of

activation energy over the given temperature range is

[Given : log 19.9 = 1.299]

(a) 3.911 × 10⁻⁵ s⁻¹

(b) 1.139 × 10⁻⁵ s⁻¹

(c) 3.318 × 10⁻⁵ s⁻¹

(d) 1.193 × 10⁻⁵ s⁻¹