Collision Theory Video Lessons

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Problem: Use collision theory to determine which single-step reaction has the smallest orientation factor.a) H + H → H2b) I + HI → I2 + Hc) H2 + H2C=CH2 → H3C–CH3d) All of these reactions have the same orientation factor.

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We’re being asked to use collision theory to determine which single-step reaction has the smallest orientation factor.


In collision theory, we look at all the different factors that have to be taken into account whenever reactant molecules collide in order for products to be successfully created.


This involves the Arrhenius Equation shown below:

k =A·e-EaRT

A = Frequency Factor
Ea = Energy of Activation
R = Gas Constant = 8.314 J/(mol∙K)
T = Temperature

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Problem Details

Use collision theory to determine which single-step reaction has the smallest orientation factor.
a) H + H → H2
b) I + HI → I2 + H
c) H2 + H2C=CH2 → H3C–CH3
d) All of these reactions have the same orientation factor.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Collision Theory concept. You can view video lessons to learn Collision Theory. Or if you need more Collision Theory practice, you can also practice Collision Theory practice problems.

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Based on our data, we think this problem is relevant for Professor Fedoryak's class at University of Manitoba.