According to collision theory, what is the most basic requirement for a chemical reaction to occur?, Particles (atoms or molecules) must physically hit each other., What is the difference between a standard collision and an "effective collision"?, A standard collision is any bump between particles, while an effective collision is one that actually results in the formation of new products., What are the three specific requirements for a collision to be considered "effective"?, 1. Physical contact, 2. Sufficient energy (Activation Energy), and 3. Proper orientation., How does the text define "Activation Energy"?, The minimum force or energy required during a collision to break existing chemical bonds., Why is "proper orientation" compared to a key and a lock?, Because particles must hit each other in a specific position for the reaction to work, just as a key must be positioned correctly to turn a lock., How does increasing temperature influence the behavior of particles and the reaction rate?, It causes particles to move faster, which increases both the frequency of collisions and the energy with which they hit., In terms of collision theory, what happens when you increase the concentration of reactants?, There are more particles in the same space, which increases the statistical chances of them bumping into each other., Why does crushing a solid into a powder (increasing surface area) speed up a reaction?, It exposes more "reaction sites," providing more surface area for collisions to take place., What is the primary role of a catalyst in a chemical reaction?, A catalyst lowers the activation energy (the energy "hill") required for a collision to be successful., How does the concept of collision theory explain the function of a refrigerator in food preservation?, The cold temperature inside a refrigerator slows down the movement of particles, which reduces the frequency and energy of collisions that cause food to rot.

Collision Theory

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