For the following system at equilibrium,
H2(g) + CO2(g) H2O(g) + CO(g)
the addition of H2(g) would cause (according to LeChatelier's principle)
a. only more H2O(g) to form.
b. only more CO(g) to form.
c. more H2O(g) and CO(g) to form.
d. only more CO2(g) to form.
e. no change in amounts of products or reactants.
Answer: c. more H2O(g) and CO(g) to form.