engineering chemistry MCQ #4911

The rate constant of a reaction at 25°C is 0.1 s^-1. The activation energy is 50 kJ/mol. The rate constant at 35°C is

engineering chemistry MCQ #4911

  1. Question 1

    Q1. The rate constant of a reaction at 25°C is 0.1 s^-1. The activation energy is 50 kJ/mol. The rate constant at 35°C is

    • A) 0.15 s^-1
    • B) 0.2 s^-1
    • C) 0.3 s^-1
    • D) 0.4 s^-1

    Answer: 0.2 s^-1

    Explanation: Using Arrhenius equation, we can find k2 = 0.2 s^-1, with Ea = 50 kJ/mol, T1 = 298 K, and T2 = 308 K.