Reaction Kinetics: The Essentials

let's take a look at arrhenius formula and rate law of hydrogen peroxide decomposition again: k = Ae^Ea/RT , Rate = k [H2O2] which of the following statements is correct?

The lower the activation energy, the faster the reaction rate

what happens if we lower the temperature of the reaction environment?

The molecules have a lower kinetic energy

what do we call the minimum energy requirement to initiate a chemical reaction?

activation energy

what do you notice when changing the effect of the catalyst?

reactions with a catalyst have a lower activation energy

For the Squadrone, we are going to utilize products of the hydrogen peroxide decomposition reaction. What are the products of that reaction?

Oxygen and water

What does the Control O2 graph show?

Oxygen concentration increased over time.

The reaction rate is the change in concentration of either the reactant or product (X) per unit of time (t). considering the definition, which mathematical formula can we use to express the reaction rate?

Rate = delta (change in)[X]/delta t

what can you say about the consumption of hydrogen peroxide compared to the production of oxygen

Rate of consumption of H2O2 = 2 x rate of production of O2

can you figure out how having a higher potential energy for the reactant affects the activation energy, all other things being equal?

it decreases the activation energy

after adding a catalyst, what did you notice about the reaction rate?

it increased

what can you observe for the energy of the reaction system, when the potential energy of the reactants is greater than that of products?

as the reaction proceeds, energy is released

from experimenting with the solvents which of the statements below are most correct for the reaction rate of our experiment?

water as a solvent results in the highest reaction rates