Phase of Reactants in Rate Law


Moderators: Chem_Mod, Chem_Admin

Daisylookinland
Posts: 46
Joined: Fri Sep 28, 2018 12:28 am

Phase of Reactants in Rate Law

Postby Daisylookinland » Sat Mar 16, 2019 10:36 am

Are there any phases of reactants that we exclude when writing rate laws? When we write K, for example, we exclude solids. Does this apply for rate laws as well?

Iona Pay
Posts: 43
Joined: Fri Sep 28, 2018 12:15 am

Re: Phase of Reactants in Rate Law

Postby Iona Pay » Sat Mar 16, 2019 10:40 am

When writing a rate law, you do not include liquid or solid reactants, or water, if it is a solvent and not a reactant. As for any other molecule that is not the solvent, if it is part of a reaction, it can be in the rate law.

Madeline Motamedi 4I
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

Re: Phase of Reactants in Rate Law

Postby Madeline Motamedi 4I » Sat Mar 16, 2019 10:43 am

Yeah I actually believe Dr. Lavelle actually brought this up in class, you don't need to write the phases in the rate law however if you do it should be fine as one of the solutions for the final review had phases.

Diviya Khullar 1G
Posts: 59
Joined: Fri Sep 28, 2018 12:19 am

Re: Phase of Reactants in Rate Law

Postby Diviya Khullar 1G » Sat Mar 16, 2019 10:45 am

You don't include reactants that are acting as solvents. You also don't include zero order reactants but this is because they have an exponent of zero.


Return to “General Rate Laws”

Who is online

Users browsing this forum: No registered users and 2 guests