(Originais Teachy 2023) - Question Medium of Chemistry

A pharmaceutical industry is testing a new drug and wants to understand the kinetics of the reaction involved in its decomposition. The drug's decomposition follows a second-order kinetics with respect to reactant A. Scientists collected some data during an experiment, showing that the concentration of A decreases from 0.100 mol/L to 0.075 mol/L in 20 minutes. Considering the information provided: a) Explain what a second-order reaction with respect to reactant A means. b) Calculate the rate constant (k) of the drug decomposition reaction. c) Determine the time required for the concentration of reactant A to decrease by half, i.e., when the initial concentration of 0.100 mol/L decreases to 0.050 mol/L.