Chemical Equilibrium for Pc

1. If Q is not equal to reaction equilibrium constant K (Kc for concentrations and Kp for pressures), then reaction is not at equilibrium and it will proceed (due to difference in forward and reverse reaction speeds) to the direction defined by Q.

2. •To start calculation user is required to fill in stoichiometric coefficients, initial concentrations (pressures) of available components, and equilibrium constant Kc (Kp).

3. Chemical Equilibrium is a tool for accurate estimation of concentrations and pressures of the chemical reaction reactants and products at equilibrium.

4. Apparently Q>K, suggesting that reaction is too close to the products side and reverse reaction will prevail to bring the reaction back to the equilibrium.

5. The application derives final, equilibrium parameters based on equilibrium constants (Kc and Kp), initial concentrations and stoichiometric coefficients.

6. •If certain compound do not contribute to equilibrium calculations, like water in aqueous solution, then to exclude the compound it is required to long press on its name field.

7. *Importantly, real system powers may differ from reaction coefficients, due to overall reaction mechanism complexity.

8. •Reaction coefficients are actually representing powers and therefore define reaction order.

9. Additionally, app calculates reaction quotient for any given concentrations and stoichiometry.

10. If Q is less than K reaction will move towards products (C and D), in opposite case – reverse reaction will prevail.

11. •Significant attention should be paid to concentration, pressure and equilibrium constant units.

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