Collision Theory Basics

What does Collision Theory suggest is necessary for a chemical reaction to occur?

• Reactant particles must collide with one another.

• Reactant particles must be in a liquid state.

• Reactant particles must be exposed to sunlight.

• Reactant particles must be in a vacuum.

Which factor increases the frequency of collisions between reactant particles?

• Increasing the concentration of reactants.

• Decreasing the temperature.

• Reducing the size of the reaction container.

• Adding a catalyst.

What is the role of proper orientation in a chemical reaction?

• Ensures particles collide at the correct angle to form new bonds.

• Increases the speed of the reaction.

• Reduces the activation energy required.

• Prevents particles from bouncing off each other.

What is Activation Enthalpy in the context of Collision Theory?

• The minimum kinetic energy required for reactants to form products.

• The energy released during an exothermic reaction.

• The energy absorbed during an endothermic reaction.

• The potential energy of reactants at the start of a reaction.

How does increasing temperature affect the rate of reaction?

• It increases the kinetic energy of particles, leading to more successful collisions.

• It decreases the activation energy required for the reaction.

• It reduces the concentration of reactants.

• It changes the orientation of reactant particles.

What happens to kinetic energy as particles approach each other during a reaction?

• It is converted into potential energy.

• It remains constant.

• It decreases significantly.

• It is absorbed by the surroundings.

Which of the following is NOT a factor that affects the rate of reaction according to Collision Theory?

• The color of reactant particles.

• The concentration of reactants.

• The orientation of colliding particles.

• The activation energy of the reaction.