Collision Theory: Key Factors for Chemical Reactions

The video tutorial explains collision theory, emphasizing that for a chemical reaction to occur, particles must collide with sufficient energy and correct orientation. It uses diatomic molecules and a plasticine analogy to illustrate how collisions can lead to reactions. The concept of fruitful collisions is introduced, highlighting the importance of energy and orientation in successful reactions.

What is the basic requirement for a chemical reaction to occur according to collision theory?

• Particles must be at absolute zero temperature.

• Particles must collide.

• Particles must be in a liquid state.

• Particles must be in a vacuum.

Why do not all collisions between particles result in a chemical reaction?

• Because particles are too fast.

• Because particles are not always in the correct orientation.

• Because particles are too small.

• Because particles are always in a gaseous state.

In the context of diatomic molecules, what is necessary for a reaction to occur?

• Molecules must be in a solid state.

• Molecules must collide with sufficient energy.

• Molecules must be in the correct orientation.

• Molecules must be in a liquid state.

How does the orientation of particles affect the likelihood of a reaction?

• Orientation has no effect.

• Correct orientation increases the likelihood of a reaction.

• Orientation only matters in solid-state reactions.

• Incorrect orientation always leads to a reaction.

What happens when two diatomic molecules collide in the wrong orientation?

• They always react.

• They never react.

• They sometimes react.

• They form a new element.

What does the plasticine ball analogy illustrate about chemical reactions?

• Reactions require a catalyst.

• Reactions occur only in the presence of light.

• Reactions occur only in a vacuum.

• Reactions require both energy and correct orientation.

What is a 'fruitful collision' in the context of chemical reactions?

• A collision that results in a reaction.

• A collision that involves only one particle.

• A collision that does not result in a reaction.

• A collision that occurs in a vacuum.

In the plasticine analogy, what does throwing the yellow ball at the red ball represent?

• A collision with a catalyst.

• A collision with insufficient energy.

• A collision in a vacuum.

• A collision with sufficient energy.

What two factors are necessary for a collision to result in a reaction?

• Low temperature and high pressure.

• Presence of a catalyst and light.

• Sufficient energy and correct orientation.

• High temperature and pressure.

What is the significance of energy in a collision for a reaction to occur?

• Sufficient energy is necessary for a reaction.

• Energy must be infinite for a reaction.

• Energy is not important.

• Energy must be zero for a reaction.