Chemical Equilibrium and Steady State

Seawater chemistry is determined by several factors. River water input, hydrothermal solution input, evaporation of seawater, interactiOTi of seawater with oceanic crust and anthropogenic influence are important factors. It is simply assumed that seawater chemistry is controlled by input and output fluxes and chemical reaction in the system. Reversible chemical reaction will be considered below. 

If steady state is attained, that is, dmA/dt = dma/dt = 0, the following equation can be derived. 

The relationship between equilibrium constant, K4.ig, and reaction rate constant, k and Id, is 

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