physical chemistry - Equilibrium constant and thermodynamic ...
Dec 17, 2015 · The thermodynamic equilibrium constant gives how much of something will react. Kinetics are dictated by the movements of atoms, Thermodynamics is dictated by the changes in energy and entropy. Kinetics are dictated by the movements of atoms, Thermodynamics is dictated by the changes in energy and entropy.
Thermodynamics and equilibrium constant - Chemistry Stack …
Jan 8, 2014 · Since the definition of standard state affects the value of $\Delta G$, we must choose that form of the equilibrium constant which uses the activity of the reacting species in terms of the quantity used to define the standard state of that species. This maintains uniformity.
What is the meaning of K in the thermodynamic equation for …
Oct 8, 2018 · I just studied the formula for equilibrium constant in thermodynamics. But when an equilibrium is established $\Delta G$ is always $0$ as told by my teacher.
Why are solids and liquids not included in the equilibrium …
For that reason, the equilibrium constant does not change. In the example above with the sugar, finely granulated sugar dissolves faster than coarsly granulated sugar, but the solubility (and the the equilibrium constant) is the same. [OP] Why are solids and liquids not included in the equilibrium constant? They are, in a way.
Why can't all chemist/IUPAC agree to make equilibrium constant …
Apr 2, 2022 · Relation to thermodynamic equilibrium constant. The relation is loose. For example, even if these are pH-dependent, you would not include the hydronium concentration in the scheme but instead quote the values at a specific pH. You would also combine distinct protonation states in a single constant (for examples for ATP). Time to wash your hands
How to derive the relation between gibbs energy and equilibrium …
Nov 28, 2018 · I want to understand the derivation between gibbs energy and equillibrium constant $$\Delta G=\Delta G^o+RT\ln Q?$$ I have seen a similar post on CSE Derivation of relationship between equilibrium constant and Gibbs free energy change which seems to be incomplete and still confusing so I am again asking this question.
Derivation of relationship between equilibrium constant and Gibbs …
Nov 6, 2013 · $\begingroup$ Gibbs free energy is the free energy at constant pressure and temperature, so why did you use dT and dP in your equation? It would seem that this violates the definition of the Gibb's free energy. Also, why did you take the path where entropy and volume remains constant, it can take any path. $\endgroup$ –
physical chemistry - Equilibrium constant. Can it be reached ...
Dec 3, 2015 · "Equilibrium" is a statistical concept that only applies to large numbers of molecules. Another way to say it is that equilibrium is a thermodynamic concept and thus only applies in the thermodynamic limit. What is "large" depends on the particular system of interest. In particular it depends on the equilibrium constant.
physical chemistry - Why is the equilibrium constant unitless ...
Jul 3, 2019 · Attaching units to the equilibrium constant during reporting is a useful mnemonic when performing some computations, but it should be kept in mind that such a constant may not fulfill the requirements for computation of an associated standard free energy change, unless first modified by a ratio product of the standard concentrations.
thermodynamics - How does increasing the ionic strength of an …
Feb 14, 2016 · The equilibrium constant is a ratio of thermodynamic activities. The "concentration coefficient" can vary and will not be constant any time that activity coefficients are not 1.0. Ionic strength is one of many variables that can affect activity coefficients.