Question

select the correct collision theory explanation for changing the rate of the given chemical reaction. refrigerate food to keep it from spoiling. add inert water to a reaction solution. compress the air/fuel mixture inside an engine cylinder with a piston. particles collide more frequently. raise the boiling point of water with a pressure cooker. particles collide with more force. grind a metal into a fine powder.

Explanation:

1. Refrigerating food lowers temperature, reducing particle - collision energy and rate of spoilage - related reactions.
2. Adding inert water dilutes reactants, decreasing collision frequency between reactant particles.
3. Compressing air - fuel mixture increases pressure, making particles collide more frequently.
4. Raising water boiling point with a pressure - cooker increases temperature, making particles collide with more force.
5. Grinding metal into powder increases surface area, allowing more particles to be available for collisions and increasing collision frequency.

Answer:

• Refrigerate food to keep it from spoiling: Particles collide less frequently (due to lower temperature).
• Add inert water to a reaction solution: Particles collide less frequently (due to dilution).
• Compress the air/fuel mixture inside an engine cylinder with a piston: Particles collide more frequently.
• Raise the boiling point of water with a pressure - cooker: Particles collide with more force.
• Grind a metal into a fine powder: Particles collide more frequently (due to increased surface area).