Gizmo Collision Theory

Front

What is Collision Theory?

Back

Collision Theory states that for a reaction to occur, reactant particles must collide with sufficient energy and proper orientation.

Front

How does surface area affect reaction rates?

Back

Increasing the surface area of a solid reactant increases the rate of reaction because more particles are available to collide.

Front

What is the relationship between temperature and reaction rate?

Back

Increasing temperature generally increases the reaction rate because particles move faster and collide more often.

Front

What is a catalyst?

Back

A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process.

Front

How does concentration affect reaction rates?

Back

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

Front

What is half-life in the context of chemical reactions?

Back

Half-life is the time required for the concentration of a reactant to decrease to half of its initial value.

Front

Why do wood shavings catch fire more easily than a wood chunk?

Back

Wood shavings have a larger surface area, allowing for more collisions with oxygen, which facilitates combustion.

Front

What happens to molecular movement at higher temperatures?

Back

At higher temperatures, molecules move faster, leading to more frequent and energetic collisions.

Front

What is the effect of a higher concentration of catalyst on reaction rate?

Back

A higher concentration of catalyst generally increases the reaction rate by providing more active sites for the reaction.

Front

Define activation energy.

Back

Activation energy is the minimum energy required for a chemical reaction to occur.