For which reaction at equilibrium will a decrease in volume at constant temperature cause a decrease in the amount of product?

For which reaction at equilibrium will a decrease in volume at constan

1.	For which reaction at equilibrium will a decrease in volume at constant temperature cause a decrease in the amount of product?
Answer» `N_(2)(g)+3H_(2)(g) RARR 2NH_(3)(g)` `HCl(g)+H_(2)O(l)rarrH_(3)O^(+)(aq)+Cl^(-)(aq)` `Fe_(3)O_(4)(s)+4H_(2)(g)rarr3Fe(S)+4H_(2)O(g)` `CaCO_(3)(s)rarrCaO(s)+CO_(2)(g)` Answer :D