Chemical Kinetics

Front

What is chemical kinetics?

Back

The branch of chemistry that studies the rates of chemical reactions and the factors affecting them.

Front

What is the effect of temperature on reaction rate?

Back

Increasing temperature generally increases reaction rate by making collisions more frequent and more energetic.

Front

What are the two criteria for a collision to be effective?

Back

1. Enough energy to overcome the activation energy. 2. Proper orientation of the colliding particles.

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Front

How does particle size affect reaction rate?

Back

Decreasing particle size increases the reaction rate by increasing the number of collisions.

Front

What role do catalysts play in chemical reactions?

Back

Catalysts speed up reactions by lowering the activation energy without being consumed in the process.

Front

What is the relationship between concentration and reaction rate?

Back

Increasing the concentration of reactants generally increases the reaction rate due to a higher likelihood of collisions.

Front

What is the effect of surface area on reaction rate?

Back

Increasing the surface area of a reactant increases the reaction rate by allowing more collisions to occur.

Front

What is the significance of collision theory?

Back

Collision theory explains how and why reactions occur based on the collisions between reactant particles.

Front

What is the difference between homogeneous and heterogeneous reactions?

Back

Homogeneous reactions occur in a single phase, while heterogeneous reactions involve multiple phases.