Reaction Rates

Front

What is a reaction rate?

Back

The speed at which reactants are converted into products in a chemical reaction.

Front

What type of reaction absorbs energy?

Back

Endothermic reaction.

Front

What type of reaction releases energy?

Back

Exothermic reaction.

Front

What happens to the energy in an exothermic reaction?

Back

Energy is released into the surroundings.

Front

What factors can increase the rate of a reaction?

Back

Increasing temperature, increasing concentration, increasing surface area.

Front

How does temperature affect reaction rates?

Back

Increasing temperature generally increases reaction rates by providing more energy to the reactants.

Front

What is surface area in the context of reactions?

Back

The total area of the exposed surface of a solid reactant.

Front

How does particle size affect reaction rates?

Back

Smaller particle size increases surface area, allowing for more collisions and faster reactions.

Front

What is activation energy?

Back

The minimum energy required for a reaction to occur.

Front

What is the activation energy of the reverse reaction if the forward reaction has an activation energy of 150 kJ and the overall reaction releases 75 kJ?

Back

75 kJ.