Coal can be used to generate hydrogen gas (a potential fuel) by the following endothermic reaction.

C(s) + H2O(g) < __> CO(g) +H2(g)

If this reaction mixture is at equilibrium, predict the effect (shift right, shift left, or no effect) of

a. adding more C to the reaction mixture.

b. adding more H20(g) to the reaction mixture.

c. raising the temperature of the reaction mixture.

d. increasing the volume of the reaction mixture.

e. adding a catalyst to the reaction mixture.