H2 +Br2 =2HBr so suggest twoo reasons why all the collisions between hydrogen and bromine gas molecules do bot result in reaction?

Question

H2 +Br2 =2HBr so suggest twoo reasons why all the collisions between hydrogen and bromine gas molecules do bot result in reaction?

Answer 1

Well one reason is that the energy of the collision might be lower than the activation energy.

Answer 2

If one elevates the temperature (ie, increase the KE of the molecules), read what happens...http://www.chemguide.co.uk/inorganic/group7/otherreactions.html

The second reason is the energies of the molecules might be sufficient, but the angle of collision might be such that not enough KE can be transfered to activation: ie, a glancing collision. In a car wreck, there is a big difference between a head on collision and a bump in the rear bumper ..

Answer 3

Bot, Please answer this question

Find the mean absolute deviation (MAD) of the data

98 132 295 68 176 89 287 198 94 68 240 94 369 94 155

Answer 4

There can be several reasons why all collisions between hydrogen (H2) and bromine (Br2) gas molecules do not result in a reaction. Here are two possible explanations:

1. Insufficient activation energy: For a chemical reaction to occur, the colliding molecules must have enough energy to overcome the energy barrier known as the activation energy. In the case of H2 and Br2, not all collisions have enough energy to provide the activation energy required for the reaction. The collision energy depends on factors such as temperature and the approach angle between the molecules.

2. Incorrect orientation: Even if a collision has sufficient energy, the molecules must collide in the correct orientation to form the transition state, which leads to product formation. In the case of H2 and Br2, only a small fraction of collisions have the correct orientation for the reaction to take place. Most collisions occur with random orientations that do not lead to the formation of the reaction products. Thus, only a small fraction of the collisions results in a reaction.

It's important to note that collision theory helps explain the factors that affect the rate of a chemical reaction, but not all collisions result in a reaction due to the reasons mentioned above.