Rates of Reactions

Front

What is the definition of activation energy?

Back

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

Front

What color on a graph typically represents a solution with a higher temperature?

Back

Red.

Front

In an endothermic reaction, how does the energy of the products compare to the reactants?

Back

The products have more energy than the reactants.

Front

Why does increasing temperature affect the rate of a reaction?

Back

It increases both the frequency and energy of particle collisions.

Front

What letter typically represents activation energy in reaction diagrams?

Back

A.

Front

What is an endothermic reaction?

Back

A reaction that absorbs energy from its surroundings.

Front

What is an exothermic reaction?

Back

A reaction that releases energy to its surroundings.

Front

How does a catalyst affect activation energy?

Back

A catalyst lowers the activation energy required for a reaction.

Front

What is the relationship between temperature and reaction rate?

Back

Higher temperatures generally increase the reaction rate.

Front

What is the effect of concentration on reaction rates?

Back

Higher concentration of reactants typically increases the reaction rate.