Reaction Rates Flashcard

Front

If the temperature is increased, then the rate is ........... and the time required for the reaction is  ............

Back

Increases, decreases

Front

A ______________ is a substance that increases the rate of a reaction without being used up during the reaction.

Back

catalyst

Front

A catalyst  ........... the rate of reaction by .......... the energy of activation.

Back

Increases, decreasing

Front

A reaction with very large energy of activation would be a  ( fast or slow ) reaction rate.

Back

slower

Front

What is activation energy?

Back

The minimum amount of energy needed for a reaction to potentially occur.

Front

What effect does increasing concentration have on reaction rates?

Back

Increasing concentration generally increases the rate of reaction.

Front

What is the role of a catalyst in a chemical reaction?

Back

A catalyst increases the rate of reaction without being consumed.

Front

How does surface area affect reaction rates?

Back

Increasing surface area increases the rate of reaction.

Front

What is the relationship between temperature and kinetic energy in reactions?

Back

Higher temperature increases kinetic energy, leading to more frequent and effective collisions.

Front

Define the term 'reaction rate'.

Back

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