# Questions tagged [equilibrium]

The state in which both reactants and products are present at concentrations which have no further tendency to change with time.

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### Water Gas Shift Reaction

Considering the water-gas shift reaction $$\ce{CO(g) + H2O(g) <=> CO2(g) + H2(g)},$$ I would like to understand how evolves $K^\circ$ the equilibrium constant of this reaction when I add water ...
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### Is my calculated equilibrium constant reasonable for my reaction? [closed]

My reaction is Fe3+ + SCN- <=> FeSCN2+ My data at 20 degrees Celsius My calculated equilibrium constants using the following formula I tried finding literature online but I couldn't find any ...
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### Gibbs free energy change in reversible and irreversible reaction

Why is ∆G in reversible reactions dependent on the concentrations of the reactant and the product while in the case of irreversible reactions independent of the concentrations? Please explain with the ...
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### Is standard gibbs free energy change of a reaction independent of pressure? [duplicate]

In my textbook, to show that Kp(equilibrium constant) is independent of pressure they have used the equation (delta G = RTln Kp) and the author says that since delta G for a reaction is independent of ...
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### How is silicic acid formed?

My book gives the following reaction: $$\ce{SiCl4 + H2O -> HCl + Si(OH)4}$$ Since equilibrium favours the formation of weaker acids. How is this reaction able to proceed if a strong acid like HCl ...
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### what happens if you add the concentration of BOTH product and reactant at equilibrium

It is seems obvious that if you increase the REACTANT ONLY, the position of Equilibrium will move to the product side. Thus making more product if you measured it again in the second equilibrium. ...
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### Comparison of the solubility of lead(II) iodide in water and in lead(II) nitrate solution [closed]

Solubility of $\ce{PbI2}$: Is $\ce{PbI2}$ more soluble in $\ce{H2O}$ or in an aqueous solution of Lead(II) nitrate? $K_\mathrm{sp} (\ce{PbI_{2}})=8.7\times 10^{-9}$ I'm not very good in Chemistry, I ...