Question

The rate constant for a certain reaction is measured at two different temperatures: temperature Assuming the rate constant obeys the Arrhenius equation, calculate the activation energy for this reaction. Round your answer to significant digits.

Answer 1

The question has some details missing which I have shown in the attached file.

Step-by-step explanation:

The concept of arrehenius equation is used to calculate the activation energy.

• Given T1 = 141.0 degree celsius = 414K and K1 = 3.3 x 10^8

• T2 = 77 degree celsius = 350K and k2 = 1.1 x 10^8

• R = 8.314

• from Arrehenius equation;

• ln(k2/k1) = -Ea/R [1/T2 - 1/T1]

• Plugging the values ;

• ln(1.1/3.3) = -Ea/8.314 [ 1/350 - 1/414]

• Ea = 20.679KJ/mol = activation energy for this reaction