All Flashcards
Compare the kinetic energy of molecules at high and low temperatures.
High Temperature: Molecules have higher average kinetic energy and move faster. | Low Temperature: Molecules have lower average kinetic energy and move slower.
Differentiate between successful and unsuccessful collisions in a chemical reaction.
Successful Collisions: Have proper orientation and sufficient energy to overcome the activation energy. | Unsuccessful Collisions: Lack proper orientation or sufficient energy.
Describe the process of heat transfer between two objects at different temperatures.
Heat flows from the hotter object to the colder object until both reach thermal equilibrium, where their temperatures are equal, and there's no net heat flow.
Define temperature in terms of molecular motion.
Temperature is a measure of the average kinetic energy of particles.
What is activation energy?
The minimum kinetic energy required for a collision to result in a chemical reaction.
Define thermal equilibrium.
The state where two objects have the same temperature, and there is no net heat transfer between them.
What is the collision theory?
A theory stating that for a chemical reaction to occur, reactant molecules must collide with sufficient energy and proper orientation.
State the Zeroth Law of Thermodynamics.
If object A is in thermal equilibrium with object B, and object B is in thermal equilibrium with object C, then object A is also in thermal equilibrium with object C.