Question

A)
Which trial had more collisions between the particles?
(1 point)
Trial A
Trial B
B)
Which part of the Collision Theory explains your answer to the question above?
(2 points)
Increasing the concentration of a substance with increase the reaction rate because there is a higherprobability of collision.
Increasing surface area of the solid will increase reaction rate.
Increasing temperature will increase reaction rate.
Adding a catalyst will increase reaction rate.
C)
What would you expect to happen if you increase the temperature on the lower concentration (10particle) model?
(2 points)
The reaction rate will increase dramatically.
The number of collisions would increase slightly with increasing energy, but the rate would not be affectedmuch due to the low number of particles.
There would be no change to the number of collisions or reaction rate.
The reaction rate would decrease.
A)

Answer 1

A) Trial B

B) "Increasing the concentration of a substance will increase the reaction rate because there is a higher probability of collision."
Explanation: More particles per volume → more frequent collisions → higher reaction rate.

C) "The number of collisions would increase slightly with increasing energy, but the rate would not be affected much due to the low number of particles."
Explanation: Raising temperature increases kinetic energy (more energetic collisions), but with only 10 particles the collision frequency stays low, so rate change is limited.