00:01
For this question, we're asked to determine which of the following statements concerning temperature and the rate of the reaction are true.
00:08
The first one says molecules had a higher temperature.
00:14
I think they mean at.
00:15
Molecules at a higher temperature have lower activation energy.
00:20
This is false because for a particular reaction, the activation energy is constant.
00:27
So at higher temperatures, they have a greater chance of having enough energy to match or beat the activation energy, but they don't actually change the activation energy.
00:44
For b, it says the molecules at higher temperature collide less often because of increased speed.
00:50
This is false because at higher temperatures, they collide more frequently because they're moving faster, so obviously they'll run into each other more frequently.
01:01
C is molecules at lower temperature cannot collide effectively.
01:06
So, maybe so...