LT6.1 Reaction Rates

Front

What is the reaction rate?

Back

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

Front

How does surface area affect reaction rate?

Back

A greater surface area allows more collisions between reactant particles, increasing the reaction rate.

Front

What is activation energy?

Back

The minimum amount of energy required for colliding particles to react.

Front

How does temperature influence reaction rates?

Back

Higher temperatures increase the frequency and energy of particle collisions, leading to a higher reaction rate.

Front

What role do catalysts play in chemical reactions?

Back

Catalysts increase the reaction rate by lowering the activation energy without being consumed in the reaction.

Front

What is the effect of concentration on reaction rates?

Back

Higher concentration of reactants leads to more collisions, thus increasing the reaction rate.

Front

Why do reactions occur faster in gases compared to solids?

Back

Gas particles move freely and collide more often than solid particles, leading to a higher reaction rate.

Front

What is the collision theory?

Back

The theory that states that for a reaction to occur, particles must collide with sufficient energy and proper orientation.

Front

How does the nature of reactants affect reaction rates?

Back

Different substances react at different rates due to their chemical properties and bond strengths.

Front

What is the difference between exothermic and endothermic reactions?

Back

Exothermic reactions release energy, while endothermic reactions absorb energy.