Adding a compound to reaction

[Emily Glaser 1F]

NH4HS(s) <---> NH3(g) + H2S(g)

What would happen in PbCl2(s) was added to products side.

This is from Lyndon's practice test. He said would shift to the left. I thought added a solid would have no effect, even if it has nothing to do with compounds involved. He claimed Q>K

[Kyra Dingle 1B]

If a solid is added, it should have not effect since it is not included in the equilibrium constant. May I ask which specific problem you are referring to in his practice test?

[Emily Glaser 1F]

Question 37