Chapter 17, Problem 33QAP

. For the reaction system
$\text{C}\left(s\right)+{\text{H}}_{\text{2}}\text{O}\left(g\right)\rightleftharpoons {\text{H}}_{\text{2}}\left(g\right)+\text{CO}\left(g\right)$   which has already reached a state of equilibrium, predict the effect that each of the following changes will have on the position of the equilibrium. Tell whether the equilibrium will shift to the right, will shift to the left, or will not be affected.
a. The pressure of hydrogen is increased by injecting an additional mole of hydrogen gas into the reaction vessel.
b. Carbon monoxide gas is removed as it forms by use of a chemical absorbent or “scrubber.”
c. An additional amount of solid carbon is added to the reaction vessel.