Rates of reactions; order and molecularity; rate law, rate constant, half-life; differential and integrated rate expressions for zero and first order; Arrhenius equation, activation energy; homogeneous and heterogeneous catalysis; enzyme catalysis.
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Q1 · Chemical Kinetics · MEDIUM
A first-order reaction has a rate constant of 0.0693 min⁻¹. The time required for 75% of the reactant to decompose is:
Q2 · Chemical Kinetics · HARD
A first-order reaction has a rate constant of 0.0693 min⁻¹. What percentage of the reactant will remain after 20 minutes?