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CGP EDU Academic Team
Published on: August 13, 2026
At 407 K the rate constant of a chemical reaction is 9.5 x 10 -5 s -1 and at 420 K , the rate constant is 1.9 x 10 -4 s -1 . The frequency factor of the reaction is x x 10 5 s - 1 .The value of 'x' is. Report your answer by rounding it up to nearest whole number.
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5
The Arrhenius equation is,
Given 
R = 8.314Jmol -1 K -1 ;
T 1 = 407 K and T 2 = 420 K
Substituting the values in Arrhenius equation.
Applying now 
So, A = 5.0 x 10 5 s -1
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