The s of the experiment are represented in the graph and table below: ; Calculation of the mass-action expression value at each time is done and represented in the following table and graph: ; Now again, the reaction quotient value can be calculated and graphically represented at each time: ;
Finally, the equilibrium constant can be calculated as:
The graph shows that the reaction reaches equilibrium after around 9 minutes. The table shows that the mass-action expression value at equilibrium is 9.5×10-5. The reaction quotient value at equilibrium is also 9.5×10-5. The equilibrium constant is 9.5×10-5.
