Collision theory

According to the collision theory, how does concentration affect the rate of reaction?

• It increases the activation energy
• It decreases the frequency of collisions
• It increases the chance of successful collisions
• It decreases the temperature of the reaction

How does a catalyst affect the rate of reaction?

• A catalyst has no effect on the rate of reaction
• A catalyst increases the rate of reaction
• A catalyst decreases the rate of reaction
• A catalyst stops the reaction from occurring

What happens to the rate of reaction when the concentration of reacting particles is increased?

• The rate of reaction becomes unpredictable
• The rate of reaction decreases
• The rate of reaction remains the same
• The rate of reaction increases

What are the reactants and products in a chemical reaction?

• Frequency and collision
• Atoms and bonds
• Particles and energy
• Reactants and products

What are the factors affecting the rate of reaction?

• Color, shape, size, temperature
• Density, volume, mass, velocity
• Concentration, pressure, surface area, temperature, catalysts
• Length, width, height, weight

How does surface area affect the rate of reaction according to the collision theory?

• It increases the chance of successful collisions
• It increases the activation energy
• It decreases the frequency of collisions
• It decreases the temperature of the reaction

According to the collision theory, how does a catalyst affect the rate of reaction?

• It increases the activation energy
• It decreases the temperature of the reaction
• It decreases the frequency of collisions
• It increases the chance of successful collisions

Which of the following factors affects the rate of reaction?

• Shape of the container
• Color of the reactants
• Size of the products
• Concentration of the reactants

Which factor affects the rate of reaction by increasing the pressure?

• Concentration
• Surface area
• Catalysts
• Temperature

What happens to the rate of reaction when the temperature is increased?

• The rate of reaction increases
• The rate of reaction becomes unpredictable
• The rate of reaction remains the same
• The rate of reaction decreases