Reaction Rates Simulation

HS-PS1-5: Temperature, Concentration, and Collision Theory

Explore how changing the temperature or concentration of reacting particles affects the rate of a chemical reaction. According to collision theory, particles must collide with sufficient energy (activation energy) to react.

Particle View

Reactant A

Reactant B

Product AB

Time: 0.0 s

Experimental Conditions

Temperature (Kinetic Energy) 300 K

Increases particle speed and collision energy.

Activation Energy Barrier Medium

Minimum energy required for a successful collision.

Initial Concentration [A] 50 particles

Initial Concentration [B] 50 particles

Increases collision frequency.

Concentration vs. Time

Experimental Data

Time (s)	[A]	[B]	[AB]	Rate (AB/s)

Constructing Explanations

Temperature: Raising temperature increases the average kinetic energy of particles. This means more particles have energy greater than the activation energy, leading to more successful collisions per second.

Concentration: Increasing concentration means more particles in the same volume. This increases the overall frequency of collisions, thereby increasing the reaction rate.