2 H2O2(aq) → 2 H2O(l) + O2(g) ΔH° = −196 kJ/mol_rxn The decomposition of H2O2(aq) is represented by — Kinetics Chemistry Question
Question
2 H2O2(aq) → 2 H2O(l) + O2(g) ΔH° = −196 kJ/mol_rxn
The decomposition of H2O2(aq) is represented by the equation above. A student monitored the decomposition of a 1.0 L sample of H2O2(aq) at a constant temperature of 300. K and recorded the concentration of H2O2 as a function of time. The results are given in the table below.
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Which of the following statements is a correct interpretation of the data regarding how the order of the reaction can be determined?
The reaction must be first order because there is only one reactant species.
The reaction is first order if the plot of ln [H2O2] versus time is a straight line.
The reaction is first order if the plot of 1/[H2O2] versus time is a straight line.
The reaction is second order because 2 is the coefficient of H2O2 in the chemical equation.