Question

In: Chemistry

As a sample of what you know about equilibrium, select THREE items from this list and...

As a sample of what you know about equilibrium, select THREE items from this list and discuss how each of them pertains to equilibrium: Colligative properties, Free Energy, Batteries, Temperature, pH.

Expert Solution

Free Energy --> is a function which allow sus to determine the "free" energy available to do work in the system.

So

for

G = H - TS at constant pressure... we can determine if the reaction will bee spontanous or not.

For dG >0, this will not be spontanous, for dG = 0 , this is in equilibrium and fi dG < 0, this is spontanous

Batteries --> they are nothing more than a redox reaction, a sample will be oxidized (loses electrons) and another sample gets reduced ( receives electrons)

therefore, they produce electric current, flow of electrons. They will achieve equilibrium when Ecell = 0, which is when concnetrations of reactant are all reacted to reduced products

Temperature --> in equilibrium, temperature is an important role

For endothermic systems, increase of T favour reactions

for exothermic --< increase of T will NOT favour reaction

when

d G= 0, equilibrium

then

dH - T*dS = 0

so

T = dH/dS

which is typical for an equilibirum reaction

queen_honey_blossom answered 1 year ago

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