Factors Affecting Chemical Reaction Rate

Front

What happens to the rate of a chemical reaction when temperature increases?

Back

An increase in temperature generally increases the rate of a chemical reaction.

Front

Why do reactions generally slow down at lower temperatures?

Back

The reactant molecules move slower and collide less frequently.

Front

How does the surface area of reactants affect the rate of a chemical reaction?

Back

The surface area of reactants directly affects the rate of a chemical reaction.

Front

What happens to the rate of a reaction as temperature increases?

Back

The rate of a reaction increases.

Front

How can the concentration of reactants be manipulated to control the rate of a chemical reaction?

Back

By increasing the concentration of reactants.

Front

Define 'activation energy' in the context of chemical reactions.

Back

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

Front

What role does temperature play in the kinetic energy of molecules?

Back

Higher temperatures increase the kinetic energy of molecules, leading to more frequent and effective collisions.

Front

Explain how catalysts affect the rate of a chemical reaction.

Back

Catalysts increase the rate of a chemical reaction by lowering the activation energy.

Front

What is the effect of increasing the surface area of solid reactants on reaction rate?

Back

Increasing the surface area of solid reactants increases the reaction rate.

Front

How does concentration affect the frequency of collisions between reactant molecules?

Back

Higher concentration increases the number of reactant molecules, leading to more frequent collisions.