Velocidad de reacción

The video explains how reaction rates can be determined by measuring the consumption of reactants or the formation of products over time. It also discusses various factors that can influence the speed of reactions, such as temperature, concentration, pressure, and the presence of catalysts.

How can the progress of a chemical reaction be determined?

• By checking the pH level

• By measuring the temperature change

• By observing the color change

• By measuring the amount of reactants consumed or products formed

Which of the following factors can increase the speed of a reaction?

• Decreasing the pressure

• Increasing the concentration of reactants

• Removing catalysts

• Decreasing the temperature

What effect does increasing temperature generally have on a chemical reaction?

• It speeds up the reaction

• It has no effect

• It stops the reaction

• It slows down the reaction

How does pressure influence the rate of a chemical reaction?

• It can increase the rate

• It always decreases the rate

• It has no effect

• It only affects reactions in solid state

What role do catalysts play in chemical reactions?

• They change the products of the reaction

• They are consumed in the reaction

• They slow down reactions

• They increase the reaction rate without being consumed