question 5 (1 point)\nwhich quantity does not increase when the temperature of a reaction system is…
question 5 (1 point)\nwhich quantity does not increase when the temperature of a reaction system is raised?\nactivation energy\nnumber of collisions\nnumber of effective collisions\naverage kinetic energy of the particles\nall of the above increase
Answer
Brief Explanations:
Activation energy is a property of the reaction itself, determined by the nature of reactant molecules and the reaction pathway. It does not depend on temperature. When temperature is raised:
- Particles move faster, so the number of collisions increases.
- More particles have energy ≥ activation energy, so the number of effective collisions increases.
- Average kinetic energy of particles ($KE=\frac{3}{2}kT$, where $k$ is Boltzmann's constant and $T$ is temperature) increases as $T$ increases.
Answer:
activation energy