Question

If a reaction system has come to equilibrium, the concentration of products can be increased by doing what?

Answer 1

By a miracle........

Explanation:

You have the equilibrium reaction.........

`A+BrightleftharpoonsC+D`

And `K_(eq)=([C][D])/([A][B])`; now `K_(eq)` may or may not be affected by temperature; and typically we specify standard conditions. But by definition, `"equilibrium"`, equality of forward and reverse rates, is A CONSTANT. We could add a catalyst so that the condition of equilibrium is achieved FASTER, but neither `K_(eq)` nor the equilibrium concentrations could be altered.

Of course, in the given equilibrium, we could drive the reaction to completion, by removing the products `C` and `D`, but here we manipulate an equilibrium, and do not change its value.