Chemistry Chapter: Reaction Rates

How quickly or slowly reactants turn into products

A reaction that happens quickly

A reaction that happens slowly

Particles must collide with sufficient energy to react

Minimum kinetic energy needed for a reaction

One way to increase reaction rate by increasing the number of collisions

Another way to increase reaction rate by bumping particles with more force

Higher temperature leads to more frequent and energetic collisions.

A substance that speeds up a chemical reaction without being used up in the reaction.

A biological catalyst that speeds up chemical reactions in living organisms.

Enzymes work best at specific temperatures; high or low temperatures can slow or stop enzyme activity.

Enzymes are vital for many chemical reactions in living organisms, allowing them to sustain life.

Increasing temperature increases reaction rate, while decreasing temperature decreases reaction rate.

Higher reactant concentration usually leads to a faster reaction rate because there are more molecules to collide.

Concentration is the amount of solute dissolved in a given volume of solution, measured in g/L.

Increasing surface area increases reaction rate by exposing more particles to collide.

Smaller particles have a greater total surface area than larger particles of the same mass.

Increasing surface area speeds up the rate of a chemical reaction.

Chemical reactions occur when particles collide. The more collisions, the higher the reaction rate.