48. Solving a chemistry problem

10. The gas reaction H2 + C2H4 = C2H6 proceeds according to the second-order reaction mechanism. At 610 K, the half-life is 50 s if the initial concentration of the reactants is the same and equal to 2 mol/cm3. Determine the time it takes for 2 moles of hydrogen to react by 40% in the presence of a catalyst if the catalyst lowers the activation energy by 10 kJ/mol.