engineering chemistry MCQ #4951

The rate constant of a reaction is 1.5 x 10^-4 s^-1 at 27°C. If the activation energy is 100 kJ/mol, what is the rate constant at 37°C?

engineering chemistry MCQ #4951

  1. Question 1

    Q1. The rate constant of a reaction is 1.5 x 10^-4 s^-1 at 27°C. If the activation energy is 100 kJ/mol, what is the rate constant at 37°C?

    • A) 3.0 x 10^-4 s^-1
    • B) 4.5 x 10^-4 s^-1
    • C) 2.25 x 10^-4 s^-1
    • D) 1.0 x 10^-4 s^-1

    Answer: 3.0 x 10^-4 s^-1

    Explanation: Apply the Arrhenius equation: ln(k2/k1) = (Ea/R)(1/T1 - 1/T2).