Which statement below explains why reactions happen faster at higher temperatures?

Question

a
At higher temperatures, reactant particles are moving faster, so they collide less often.
b
At higher temperatures, reactant particles are moving faster, so they collide more often.
c
At higher temperatures, reactant particles are moving more slowly, so they collide more often.
d
At higher temperatures, reactant particles are moving more slowly, so they collide less often.

Answer 1

b
At higher temperatures, reactant particles are moving faster, so they collide more often.