Study the reaction.

Question

H2SO4(l) + CaCO3(s) ⇌ CO2(g) + H2O(l) + CaSO4(aq)

Which of the following would cause the equilibrium to shift, producing more carbon dioxide gas?

Select all that apply.

removing water from the system

removing H2SO4 from the system

removing carbon dioxide gas from the system (correct)

adding CaCO3 to the system (correct)

Answer 1

a and c are correct. Solids (CaCO3) do not enter into the Keq and I think the question is worded so that isn't a correct answer; however, IF there is enough H2SO4 and CaCO3 is the limiting reagent, then more CaCO3 will increase producing more CO2.