The manganese(II)-catalyzed redox reaction between cerium(IV) and thallium(I) is thought to proceed by a three-step mechanism: Ce4+(aq) + Mn2+(aq) --> Ce3+(aq) + Mn3+(aq) (slow)
Ce4+(aq) + Mn3+(aq) --> Ce3+(aq) + Mn4+(aq)
Mn4+(aq) + Tl+(aq) --> Mn2+(aq) + Tl3+(aq)

a. If the first step of this mechanism is rate-determining (slow), choose the correct rate law for the overall process.

1. Rate = k [Ce4+]2
2. Rate = k [Ce4+] [Tl+]
3. Rate = k [Mn2+] [Mn3+]
4. Rate = k [Mn2+] [Ce4+]
5. Rate = k [Mn3+] [Tl+]
6. Rate = k [Ce4+]2 [Tl+]

b. Choose the correct chemical equation for the overall process.

1. Ce4+(aq) + Mn2+(aq) --> Ce3+(aq) + Mn3+(aq)
2. Ce4+(aq) + Mn3+(aq) --> Ce3+(aq) + Mn4+(aq)
3. 2Ce4+(aq) + Tl+(aq) --> 2 Ce3+(aq) + Tl3+(aq)

a) Rate = k [Mn2+] [Ce4+]

b) 2Ce4+(aq) + Tl+(aq) --> 2 Ce3+(aq) + Tl3+(aq)

Explanation:

A non elementary reaction is a reaction that does not occur in a single reactive encounter.

Again, the rate determining step in a reaction sequence is the slowest step in the sequence. Usually, the rate law is derived from the concentration of species involved in the rate determining step as shown in the answer above.

Secondly, the overall equation is obtained by summing up all the reactants and products and cancelling out intermediate species. This leaves us with the overall balanced reaction equation as shown in the answer.

intermolecular forces are the forces between molecules or particles.

there are two kinds of van der waals forces: weak london dispersion forces and stronger dipole-dipole forces.

in molecule of water there are dipole-dipole forces between negatively charged oxygen from one molecule of water and positively charger hydrogen of another molecule of water.

hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (h), covalently bound to a highly electronegative atom such as flourine (f), oxygen (o) and nitrogen (n) atoms.