Water gas is a mixture of carbon monoxide and hydrogen that is formed when carbon reacts with steam. $c(s)+h2o(g) co(g)+h2(g) which of the changes below will affect the equilibrium of this system? choose one or more: adding coal to the reaction vessel adding a catalyst adding steam to the reaction vessel adding carbon monoxide to the reaction vessel

Le Châtelier's principle states that when there is an dynamic equilibrium, and this equilibrium is disturbed by an external factor, the equilibrium will be shifted in the direction that can cancel the effect of the external factor to reattain the equilibrium.

1) Adding coal to the reaction vessel:

Adding coal which is carbon will increase the concentration of the reactants side. So, the reaction will be shifted to the right to attain the equilibrium again.

2) Adding a catalyst:

Adding catalyst has no effect on the equilibrium since the catalyst has the same effect on the forward and reverse sides of the reaction.

3) Adding steam to the reaction vessel:

Adding steam which is water vapor will increase the concentration of the reactants side. So, the reaction will be shifted to the right to attain the equilibrium again.

4) Adding carbon monoxide to the reaction vessel:

Adding carbon monoxide will increase the concentration of the reactants side. So, the reaction will be shifted to the left to attain the equilibrium again.

So, adding coal to the reaction vessel, adding steam to the reaction vessel, and adding carbon monoxide to the reaction vessel will affect the equilibrium of this system.