Collision Theory Video Lessons

Video Thumbnail

Concept

Problem: According to collision theory and the Arrhenius concept, which of the following statements about gas-phase chemical reactions are TRUE?i. Reaction rates are proportional to collision frequencyii. The number of effective collisions at a given temperature is related to both the kinetic energy and orientation of the reacting molecules or atomsiii. As the temperature increases, the number of species reaching the transition state of the rate-determining step increasesiv. As the temperature increases, the activation energy of a reaction remains constant. (a) (i) and (ii)(b) (ii) and (iii)(c) (i), (ii), and (iii)(d) (ii), (iii), and (iv)(e) All of the statements are correct

FREE Expert Solution
94% (37 ratings)
FREE Expert Solution

We’re being asked to determine which of the given statements about gas-phase chemical reactions are true based on the collision theory and Arrhenius concept.


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

94% (37 ratings)
View Complete Written Solution
Problem Details

According to collision theory and the Arrhenius concept, which of the following statements about gas-phase chemical reactions are TRUE?

i. Reaction rates are proportional to collision frequency

ii. The number of effective collisions at a given temperature is related to both the kinetic energy and orientation of the reacting molecules or atoms

iii. As the temperature increases, the number of species reaching the transition state of the rate-determining step increases

iv. As the temperature increases, the activation energy of a reaction remains constant.

(a) (i) and (ii)

(b) (ii) and (iii)

(c) (i), (ii), and (iii)

(d) (ii), (iii), and (iv)

(e) All of the statements are correct

Frequently Asked Questions

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.

What is the difficulty of this problem?

Our tutors rated the difficulty ofAccording to collision theory and the Arrhenius concept, whi...as high difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Jules took 2 minutes and 22 seconds to solve this problem. You can follow their steps in the video explanation above.